diff --git a/build.sh b/build.sh
index acf4f4fea..74fe48eb5 100755
--- a/build.sh
+++ b/build.sh
@@ -202,6 +202,7 @@ if [ "$MODE" = "carthage" -o "$MODE" = "all" ]; then
     echo "Verifying carthage works."
     
     set -o pipefail && carthage update && carthage build --no-skip-current
+    success="1"
 fi
 
 if [ "$success" = "1" ]; then