diff --git a/server/executor.py b/server/executor.py
index 9bbf60f..b28379d 100644
--- a/server/executor.py
+++ b/server/executor.py
@@ -64,7 +64,7 @@ class Executor:
         strdirectory = strdirectory[:-1]
         return strdirectory
 
-    def putFileInCurrentDirectory(self, filename: str, content) -> str:
+    def putFileInCurrentDirectory(self, filename: str, content: bytes) -> str:
         filename = self.sanitizeFile(filename)
         currenctfile = os.path.join(self.currentDirectory, filename)
         f = open(currenctfile, "wb")