diff --git a/config.mak.dev b/config.mak.dev
index 89b218d11a..89fefacd94 100644
--- a/config.mak.dev
+++ b/config.mak.dev
@@ -15,6 +15,7 @@ DEVELOPER_CFLAGS += -Wpointer-arith
 DEVELOPER_CFLAGS += -Wstrict-prototypes
 DEVELOPER_CFLAGS += -Wunused
 DEVELOPER_CFLAGS += -Wvla
+DEVELOPER_CFLAGS += -fno-common
 
 ifndef COMPILER_FEATURES
 COMPILER_FEATURES := $(shell ./detect-compiler $(CC))