diff --git a/internal/cli/cmd/cluster/build.go b/internal/cli/cmd/cluster/build.go
index a8d90a4b7..7da6c0612 100644
--- a/internal/cli/cmd/cluster/build.go
+++ b/internal/cli/cmd/cluster/build.go
@@ -78,7 +78,17 @@ func NewBuildCmd() *cobra.Command {
 		}
 
 		// XXX: having multiple outputs is not supported by buildctl.
-		if *push && *dockerLoad && *outputLocal != "" {
+		var activeModes int
+		if *push {
+			activeModes++
+		}
+		if *dockerLoad {
+			activeModes++
+		}
+		if *outputLocal != "" {
+			activeModes++
+		}
+		if activeModes > 1 {
 			return fnerrors.New("only one of --push, --load or --output-local can be used at a time")
 		}