diff --git a/src/renderer/components/WorkspacePropsTableRow.vue b/src/renderer/components/WorkspacePropsTableRow.vue
index 70eec017..6f7bfe14 100644
--- a/src/renderer/components/WorkspacePropsTableRow.vue
+++ b/src/renderer/components/WorkspacePropsTableRow.vue
@@ -400,7 +400,7 @@ export default {
             this.defaultValue.type = 'custom';
             this.defaultValue.custom = this.localRow.default.replace(/(^')|('$)/g, '');
          }
-         else if (!isNaN(this.localRow.default)) {
+         else if (!isNaN(this.localRow.default.replace(/[:.-\s]/g, ''))) {
             this.defaultValue.type = 'custom';
             this.defaultValue.custom = this.localRow.default;
          }