diff --git a/amalgamate.sh b/amalgamate.sh
index bbe42f4..31d5718 100755
--- a/amalgamate.sh
+++ b/amalgamate.sh
@@ -23,7 +23,7 @@ do
 	sed -i "s/#include \"$i.h\"//g" $OUTPUT_PREFIX.c
 done
 
-WARNINGS="-Wall -Wextra -Wswitch-enum -Wc++-compat"
+WARNINGS="-Wall -Wextra -Wswitch-enum -Wc++-compat -Wcast-align"
 
 echo "int main() { return 0; }" > main.c
 echo "Test compile with GCC..."