diff --git a/mozilla/ef/Compiler/CodeGenerator/NativeCodeCache.cpp b/mozilla/ef/Compiler/CodeGenerator/NativeCodeCache.cpp
index 3a8dc4e83f9..dece2212f15 100644
--- a/mozilla/ef/Compiler/CodeGenerator/NativeCodeCache.cpp
+++ b/mozilla/ef/Compiler/CodeGenerator/NativeCodeCache.cpp
@@ -366,6 +366,8 @@ static void printFrame(Method *method)
 
     Frame::printWithArgs(UT_LOG_MODULE(StackWalker), (Uint8*)(frame.getBase()), method);
 	UT_LOG(StackWalker, PR_LOG_ALWAYS, ("\n"));
+
+    UT_LOG_MODULE(StackWalker).flushLogFile();
 }
 
 #endif	// DEBUG_LOG