diff --git a/coderd/workspacebuilds.go b/coderd/workspacebuilds.go
index 7486a36843145..2e3757cdd1160 100644
--- a/coderd/workspacebuilds.go
+++ b/coderd/workspacebuilds.go
@@ -518,7 +518,8 @@ func (api *API) postWorkspaceBuilds(rw http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	if len(legacyParameters) > 0 && len(parameters) > 0 {
+	if createBuild.Transition == codersdk.WorkspaceTransitionStart &&
+		len(legacyParameters) > 0 && len(parameters) > 0 {
 		httpapi.Write(ctx, rw, http.StatusBadRequest, codersdk.Response{
 			Message: "Rich parameters can't be used together with legacy parameters.",
 		})