diff --git a/cmd/gf/internal/cmd/gendao/gendao_structure.go b/cmd/gf/internal/cmd/gendao/gendao_structure.go
index 23f3b6001..a88fa5c68 100644
--- a/cmd/gf/internal/cmd/gendao/gendao_structure.go
+++ b/cmd/gf/internal/cmd/gendao/gendao_structure.go
@@ -84,7 +84,7 @@ func generateStructFieldDefinition(
 		}
 		if tryTypeName != "" {
 			if typeMapping, ok := in.TypeMapping[strings.ToLower(tryTypeName)]; ok {
-				typeName = typeMapping.Name
+				typeName = typeMapping.Type
 				appendImport = typeMapping.Import
 			}
 		}