diff --git a/apps/Makefile b/apps/Makefile
index c95a1265..cf06f37e 100644
--- a/apps/Makefile
+++ b/apps/Makefile
@@ -6,7 +6,7 @@ APPS_BIN := $(APPS_DIR)/bin
 
 REAL_APPS := $(patsubst %, $(APPS_BIN)/%, $(APPS))
 
-CFLAGS := -Wall -Wextra -Werror
+CFLAGS := -Wall -Wextra -Werror -Os
 
 $(APPS_BIN)/%: $(APPS_SRC)/%.c
 	@mkdir -p $(@D)