diff --git a/scripts/flags.sh b/scripts/flags.sh
index 38d9d40..73c0ef7 100644
--- a/scripts/flags.sh
+++ b/scripts/flags.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
 
-CFLAGS="-std=c99 -Wall -Wextra -Werror -fPIC"
+CFLAGS="-std=c99 -Wall -Wextra -Wpedantic -Werror -fPIC"
 PREFIX="/usr/local"
 APP_LIBS="-lXmd -lXm -lXt -lX11"