diff --git a/examples/embedding/Makefile b/examples/embedding/Makefile
index 13bfdf1239..c3ca14836f 100644
--- a/examples/embedding/Makefile
+++ b/examples/embedding/Makefile
@@ -12,7 +12,7 @@ PROG = embed
 CFLAGS += -I.
 CFLAGS += -I$(EMBED_DIR)
 CFLAGS += -I$(EMBED_DIR)/port
-CFLAGS += -Wall -Og
+CFLAGS += -Wall -Og -fno-common
 
 SRC += main.c
 SRC += $(wildcard $(EMBED_DIR)/*/*.c) $(wildcard $(EMBED_DIR)/*/*/*.c)