diff --git a/build-system/scripts/build b/build-system/scripts/build
index 5fdf196460b..97a58c8fa87 100755
--- a/build-system/scripts/build
+++ b/build-system/scripts/build
@@ -68,7 +68,7 @@ echo "Content hash: $CONTENT_HASH"
 cd $BUILD_DIR
 
 SINGLE_ARCH="false"
-if [[ $PLATFORMS == "linux/amd64" ]]; then
+if [[ $PLATFORMS != "linux/amd64" ]]; then
   SINGLE_ARCH="true"
   retry ensure_docker_buildx
   echo "Creating multi-platform builder"