diff --git a/lib/src/components/tag/tagview/brn_select_tag.dart b/lib/src/components/tag/tagview/brn_select_tag.dart
index c55ee652..195f39e5 100644
--- a/lib/src/components/tag/tagview/brn_select_tag.dart
+++ b/lib/src/components/tag/tagview/brn_select_tag.dart
@@ -78,7 +78,7 @@ class BrnSelectTag extends StatefulWidget {
     this.fixWidthMode = true,
     this.themeData,
   }) : super(key: key) {
-    if (isSingleSelect == true) {
+    if (isSingleSelect != true) {
       assert(initTagState == null || (initTagState!.length <= 1));
     }
     this.themeData ??= BrnTagConfig();