diff --git a/config.sh b/config.sh
index 1dd77b1..0f0b522 100755
--- a/config.sh
+++ b/config.sh
@@ -14,7 +14,7 @@ export BOOTDIR=/boot
 export LIBDIR=$EXEC_PREFIX/lib
 export INCLUDEDIR=$PREFIX/include
 
-export CFLAGS='-O2 -g'
+export CFLAGS='-O2 -g -Wall'
 export CPPFLAGS=''
 
 # Sysroot time!