diff --git a/setup-makefiles.sh b/setup-makefiles.sh
index bbe050d..4aae0ef 100755
--- a/setup-makefiles.sh
+++ b/setup-makefiles.sh
@@ -42,9 +42,10 @@ while [ "$1" != "" ]; do
     shift
 done
 
+
 if [ -z "$TARGET" ]; then
-    echo "Warning, target for extraction not specified, defaulting to arm"
-    TARGET=arm
+    echo "Architecture for makefile setup not specified! Specify one with --target"
+    exit 1
 fi
 
 # Initialize the helper for common gapps