diff --git a/trunk/src/main/srs_main_ingest_hls.cpp b/trunk/src/main/srs_main_ingest_hls.cpp
index cbc69119b..6eda7b2bd 100644
--- a/trunk/src/main/srs_main_ingest_hls.cpp
+++ b/trunk/src/main/srs_main_ingest_hls.cpp
@@ -58,6 +58,9 @@ ISrsContext* _srs_context = new SrsThreadContext();
 // @global config object for app module.
 SrsConfig* _srs_config = new SrsConfig();
 
+// @global Other variables.
+bool _srs_in_docker = false;
+
 /**
  * main entrance.
  */
diff --git a/trunk/src/main/srs_main_mp4_parser.cpp b/trunk/src/main/srs_main_mp4_parser.cpp
index d9ecc36e5..a7aec32d4 100644
--- a/trunk/src/main/srs_main_mp4_parser.cpp
+++ b/trunk/src/main/srs_main_mp4_parser.cpp
@@ -44,6 +44,9 @@ ISrsContext* _srs_context = new SrsThreadContext();
 // @global config object for app module.
 SrsConfig* _srs_config = new SrsConfig();
 
+// @global Other variables.
+bool _srs_in_docker = false;
+
 srs_error_t parse(std::string mp4_file, bool verbose)
 {
     srs_error_t err = srs_success;