diff --git a/make/defs.mk b/make/defs.mk
index 0c4a957d..7a639022 100644
--- a/make/defs.mk
+++ b/make/defs.mk
@@ -946,7 +946,7 @@ ifeq ($(USE_COMPILER_OPTIMIZATION_OPTS),true)
 	BUILD_CPPFLAGS    += -funroll-loops -O3
 else
 	NO_OPT_FLAGS = \
-		-O0 -g -fno-inline -fno-omit-frame-pointer -fno-builtin -fno-optimize-sibling-calls \
+		-O0 -g -fno-inline -fno-default-inline -fno-omit-frame-pointer -fno-builtin -fno-optimize-sibling-calls \
 		$(GCC_NO_OPT_FLAGS)
 
 #		-fconserve-stack