diff --git a/stubs/prettytable/prettytable/colortable.pyi b/stubs/prettytable/prettytable/colortable.pyi
index 1cb3fc8bb..8d9bfbae0 100644
--- a/stubs/prettytable/prettytable/colortable.pyi
+++ b/stubs/prettytable/prettytable/colortable.pyi
@@ -40,4 +40,4 @@ class ColorTable(PrettyTable):
     @theme.setter
     def theme(self, value: Theme): ...
     def update_theme(self) -> None: ...
-    def get_string(self, **kwargs): ...
+    def get_string(self, **kwargs) -> str: ...
diff --git a/stubs/prettytable/prettytable/prettytable.pyi b/stubs/prettytable/prettytable/prettytable.pyi
index 17c2bc8d0..3e7d2ae85 100644
--- a/stubs/prettytable/prettytable/prettytable.pyi
+++ b/stubs/prettytable/prettytable/prettytable.pyi
@@ -210,11 +210,11 @@ class PrettyTable:
     def clear_rows(self) -> None: ...
     def clear(self) -> None: ...
     def copy(self): ...
-    def get_string(self, **kwargs): ...
+    def get_string(self, **kwargs) -> str: ...
     def paginate(self, page_length: int = ..., line_break: str = ..., **kwargs): ...
-    def get_csv_string(self, **kwargs): ...
-    def get_json_string(self, **kwargs): ...
-    def get_html_string(self, **kwargs): ...
+    def get_csv_string(self, **kwargs) -> str: ...
+    def get_json_string(self, **kwargs) -> str: ...
+    def get_html_string(self, **kwargs) -> str: ...
 
 def from_csv(fp, field_names: Any | None = ..., **kwargs): ...
 def from_db_cursor(cursor, **kwargs): ...