diff --git a/mypy/stubgenc.py b/mypy/stubgenc.py
index ba2f8435dbef6..a1def810f2f2a 100755
--- a/mypy/stubgenc.py
+++ b/mypy/stubgenc.py
@@ -579,6 +579,9 @@ def generate_function_stub(
         if not isinstance(docstring, str):
             docstring = None
 
+        if docstring:
+            docstring = self._indent_docstring(docstring)
+
         ctx = FunctionContext(
             self.module_name,
             name,
@@ -612,11 +615,7 @@ def generate_function_stub(
                 if inferred[0].args and inferred[0].args[0].name == "cls":
                     decorators.append("@classmethod")
 
-        output.extend(
-            self.format_func_def(
-                inferred, decorators=decorators, docstring=self._indent_docstring(docstring)
-            )
-        )
+        output.extend(self.format_func_def(inferred, decorators=decorators, docstring=docstring))
         self._fix_iter(ctx, inferred, output)
 
     def _indent_docstring(self, docstring: str) -> str: