diff --git a/Makefile b/Makefile
index 3cc64b7..f2d2144 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ SRC=main.c
 # DEBUG=-g
 DEBUG=
 $(TARGET): main.c config.h
-	gcc -Wall -Wextra $(DEBUG) $(SRC) `pkg-config --cflags --libs cairo x11` -o $(TARGET) -lm
+	gcc -Wall -Wextra -pedantic $(DEBUG) $(SRC) `pkg-config --cflags --libs cairo x11` -o $(TARGET) -lm
 install:
 	cp $(TARGET) $(DEST)/
 uninstall: