diff --git a/windows/build/build.sh b/windows/build/build.sh
index 67c52e444..5714e2d6b 100755
--- a/windows/build/build.sh
+++ b/windows/build/build.sh
@@ -20,6 +20,7 @@ while [[ "$#" -gt 0 ]]; do
             shift 2
             ;;
         -t|--target)
+            targets=()
             shift
             while [[ "$1" && ! "$1" =~ ^- ]]; do
                 targets+=("$1")