diff --git a/src/toolService.py b/src/toolService.py
index 17f472683b8a4556e60c3a4889e0cf9a1ed07512..04afc1b57d22019bae2ca146c42be334539a6826 100644
--- a/src/toolService.py
+++ b/src/toolService.py
@@ -43,7 +43,7 @@ class ToolService:
             with open(filename, 'w') as f:
                 f.write(content)
         except FileNotFoundError:
-            raise FileNotFoundError('The file is not exist')
+            raise FileNotFoundError('The file does not exist')
 
     def mkdirs(self, path):
         """