diff --git a/trunk/src/kernel/srs_kernel_buffer.cpp b/trunk/src/kernel/srs_kernel_buffer.cpp
index 069105dc8..2c998b198 100644
--- a/trunk/src/kernel/srs_kernel_buffer.cpp
+++ b/trunk/src/kernel/srs_kernel_buffer.cpp
@@ -60,7 +60,7 @@ int SrsBuffer::initialize(char* b, int nb)
 
     nb_bytes = nb;
     p = bytes = b;
-    srs_info("init stream ok, size=%d", size);
+    srs_info("init stream ok, size=%d", size());
 
     return ret;
 }