diff --git a/README.md b/README.md
index 8b3abdbb3..c25054532 100755
--- a/README.md
+++ b/README.md
@@ -176,6 +176,7 @@ The ports used by SRS:
 
 ## V4 changes
 
+* v4.0, 2021-05-20, Fix build fail when disable RTC by --rtc=off. 4.0.118
 * v4.0, 2021-05-19, Fix [#2362][bug #2362]: Allow WebRTC to play before publishing, for GB28181 as such. 4.0.117
 * v4.0, 2021-05-18, Fix [#2355][bug #2355]: GB28181: Fix play by RTC bug. 4.0.116
 * v4.0, 2021-05-15, SRT: Build SRT from source by SRS. 4.0.115
diff --git a/trunk/src/app/srs_app_hourglass.cpp b/trunk/src/app/srs_app_hourglass.cpp
index feb4024e0..cb64a1941 100644
--- a/trunk/src/app/srs_app_hourglass.cpp
+++ b/trunk/src/app/srs_app_hourglass.cpp
@@ -33,6 +33,8 @@ using namespace std;
 #include <srs_protocol_kbps.hpp>
 
 SrsPps* _srs_pps_timer = NULL;
+SrsPps* _srs_pps_conn = NULL;
+SrsPps* _srs_pps_pub = NULL;
 
 extern SrsPps* _srs_pps_clock_15ms;
 extern SrsPps* _srs_pps_clock_20ms;
diff --git a/trunk/src/app/srs_app_hybrid.cpp b/trunk/src/app/srs_app_hybrid.cpp
index aa2e17d40..3316bb4eb 100644
--- a/trunk/src/app/srs_app_hybrid.cpp
+++ b/trunk/src/app/srs_app_hybrid.cpp
@@ -443,6 +443,7 @@ srs_error_t SrsHybridServer::on_timer(srs_utime_t interval)
 #endif
 
     string objs_desc;
+#ifdef SRS_RTC
     _srs_pps_objs_rtps->update(); _srs_pps_objs_rraw->update(); _srs_pps_objs_rfua->update(); _srs_pps_objs_rbuf->update(); _srs_pps_objs_msgs->update(); _srs_pps_objs_rothers->update();
     if (_srs_pps_objs_rtps->r10s() || _srs_pps_objs_rraw->r10s() || _srs_pps_objs_rfua->r10s() || _srs_pps_objs_rbuf->r10s() || _srs_pps_objs_msgs->r10s() || _srs_pps_objs_rothers->r10s()) {
         snprintf(buf, sizeof(buf), ", objs=(pkt:%d,raw:%d,fua:%d,msg:%d,oth:%d,buf:%d)",
@@ -450,6 +451,7 @@ srs_error_t SrsHybridServer::on_timer(srs_utime_t interval)
             _srs_pps_objs_msgs->r10s(), _srs_pps_objs_rothers->r10s(), _srs_pps_objs_rbuf->r10s());
         objs_desc = buf;
     }
+#endif
 
     srs_trace("Hybrid cpu=%.2f%%,%dMB%s%s%s%s%s%s%s%s%s%s%s",
         u->percent * 100, memory,
diff --git a/trunk/src/app/srs_app_rtc_conn.cpp b/trunk/src/app/srs_app_rtc_conn.cpp
index a359e54cc..0b0c98f70 100644
--- a/trunk/src/app/srs_app_rtc_conn.cpp
+++ b/trunk/src/app/srs_app_rtc_conn.cpp
@@ -68,8 +68,6 @@ SrsPps* _srs_pps_srtps = NULL;
 SrsPps* _srs_pps_pli = NULL;
 SrsPps* _srs_pps_twcc = NULL;
 SrsPps* _srs_pps_rr = NULL;
-SrsPps* _srs_pps_pub = NULL;
-SrsPps* _srs_pps_conn = NULL;
 
 extern SrsPps* _srs_pps_snack;
 extern SrsPps* _srs_pps_snack2;
diff --git a/trunk/src/app/srs_app_threads.cpp b/trunk/src/app/srs_app_threads.cpp
index 8f4b52715..dab5df616 100644
--- a/trunk/src/app/srs_app_threads.cpp
+++ b/trunk/src/app/srs_app_threads.cpp
@@ -31,9 +31,12 @@
 #include <srs_app_source.hpp>
 #include <srs_app_pithy_print.hpp>
 #include <srs_app_rtc_server.hpp>
+#include <srs_app_log.hpp>
+
+#ifdef SRS_RTC
 #include <srs_app_rtc_dtls.hpp>
 #include <srs_app_rtc_conn.hpp>
-#include <srs_app_log.hpp>
+#endif
 
 #include <string>
 using namespace std;
@@ -43,11 +46,14 @@ extern ISrsContext* _srs_context;
 extern SrsConfig* _srs_config;
 
 extern SrsStageManager* _srs_stages;
+
+#ifdef SRS_RTC
 extern SrsRtcBlackhole* _srs_blackhole;
 extern SrsResourceManager* _srs_rtc_manager;
 
 extern SrsResourceManager* _srs_rtc_manager;
 extern SrsDtlsCertificate* _srs_rtc_dtls_certificate;
+#endif
 
 #include <srs_protocol_kbps.hpp>
 
@@ -254,12 +260,24 @@ srs_error_t SrsCircuitBreaker::on_timer(srs_utime_t interval)
     // The hybrid thread cpu and memory.
     float thread_percent = stat->percent * 100;
 
-    if (enabled_ && (hybrid_high_water_level() || hybrid_critical_water_level() || _srs_pps_snack2->r10s())) {
-        srs_trace("CircuitBreaker: cpu=%.2f%%,%dMB, break=%d,%d,%d, cond=%.2f%%, snk=%d,%d,%d",
+    static char buf[128];
+
+    string snk_desc;
+#ifdef SRS_RTC
+    if (_srs_pps_snack2->r10s()) {
+        snprintf(buf, sizeof(buf), ", snk=%d,%d,%d",
+            _srs_pps_snack2->r10s(), _srs_pps_snack3->r10s(), _srs_pps_snack4->r10s() // NACK packet,seqs sent.
+        );
+        snk_desc = buf;
+    }
+#endif
+
+    if (enabled_ && (hybrid_high_water_level() || hybrid_critical_water_level())) {
+        srs_trace("CircuitBreaker: cpu=%.2f%%,%dMB, break=%d,%d,%d, cond=%.2f%%%s",
             u->percent * 100, memory,
             hybrid_high_water_level(), hybrid_critical_water_level(), hybrid_dying_water_level(), // Whether Circuit-Break is enable.
             thread_percent, // The conditions to enable Circuit-Breaker.
-            _srs_pps_snack2->r10s(), _srs_pps_snack3->r10s(), _srs_pps_snack4->r10s() // NACK packet,seqs sent.
+            snk_desc.c_str()
         );
     }
 
@@ -291,15 +309,17 @@ srs_error_t srs_thread_initialize()
 
     // The global objects which depends on ST.
     _srs_hybrid = new SrsHybridServer();
-    _srs_rtc_sources = new SrsRtcSourceManager();
     _srs_sources = new SrsLiveSourceManager();
     _srs_stages = new SrsStageManager();
-    _srs_blackhole = new SrsRtcBlackhole();
-    _srs_rtc_manager = new SrsResourceManager("RTC", true);
     _srs_circuit_breaker = new SrsCircuitBreaker();
 
+#ifdef SRS_RTC
+    _srs_rtc_sources = new SrsRtcSourceManager();
+    _srs_blackhole = new SrsRtcBlackhole();
+
     _srs_rtc_manager = new SrsResourceManager("RTC", true);
     _srs_rtc_dtls_certificate = new SrsDtlsCertificate();
+#endif
 
     // Initialize global pps, which depends on _srs_clock
     _srs_pps_ids = new SrsPps();
@@ -308,7 +328,10 @@ srs_error_t srs_thread_initialize()
     _srs_pps_dispose = new SrsPps();
 
     _srs_pps_timer = new SrsPps();
+    _srs_pps_conn = new SrsPps();
+    _srs_pps_pub = new SrsPps();
 
+#ifdef SRS_RTC
     _srs_pps_snack = new SrsPps();
     _srs_pps_snack2 = new SrsPps();
     _srs_pps_snack3 = new SrsPps();
@@ -320,6 +343,7 @@ srs_error_t srs_thread_initialize()
     _srs_pps_rnack2 = new SrsPps();
     _srs_pps_rhnack = new SrsPps();
     _srs_pps_rmnack = new SrsPps();
+#endif
 
 #if defined(SRS_DEBUG) && defined(SRS_DEBUG_STATS)
     _srs_pps_recvfrom = new SrsPps();
@@ -377,30 +401,29 @@ srs_error_t srs_thread_initialize()
     _srs_pps_fast_addrs = new SrsPps();
 
     _srs_pps_spkts = new SrsPps();
+    _srs_pps_objs_msgs = new SrsPps();
 
+#ifdef SRS_RTC
     _srs_pps_sstuns = new SrsPps();
     _srs_pps_srtcps = new SrsPps();
     _srs_pps_srtps = new SrsPps();
 
-    _srs_pps_pli = new SrsPps();
-    _srs_pps_twcc = new SrsPps();
-    _srs_pps_rr = new SrsPps();
-    _srs_pps_pub = new SrsPps();
-    _srs_pps_conn = new SrsPps();
-
     _srs_pps_rstuns = new SrsPps();
     _srs_pps_rrtps = new SrsPps();
     _srs_pps_rrtcps = new SrsPps();
 
     _srs_pps_aloss2 = new SrsPps();
 
-    _srs_pps_objs_msgs = new SrsPps();
+    _srs_pps_pli = new SrsPps();
+    _srs_pps_twcc = new SrsPps();
+    _srs_pps_rr = new SrsPps();
 
     _srs_pps_objs_rtps = new SrsPps();
     _srs_pps_objs_rraw = new SrsPps();
     _srs_pps_objs_rfua = new SrsPps();
     _srs_pps_objs_rbuf = new SrsPps();
     _srs_pps_objs_rothers = new SrsPps();
+#endif
 
     return err;
 }
diff --git a/trunk/src/core/srs_core_version4.hpp b/trunk/src/core/srs_core_version4.hpp
index 9cac0d463..a789747f8 100644
--- a/trunk/src/core/srs_core_version4.hpp
+++ b/trunk/src/core/srs_core_version4.hpp
@@ -26,6 +26,6 @@
 
 #define VERSION_MAJOR       4
 #define VERSION_MINOR       0
-#define VERSION_REVISION    117
+#define VERSION_REVISION    118
 
 #endif