diff --git a/src/generate_images.py b/src/generate_images.py
index b945355..3b29a41 100644
--- a/src/generate_images.py
+++ b/src/generate_images.py
@@ -192,7 +192,7 @@ async def generate_overview(self) -> None:
             else add_unit(num_repos)
         )
         repos_str: str = (
-            f"{repos:,} [{'%g' % round(num_collab_repos / num_repos * 100, 2)}%]"
+            f"{repos:,} [{'%g' % round(num_collab_repos / num_repos * 100, 2) if num_collab_repos > 0 and num_repos > 0 else 0}%]"
         )
         output = sub(pattern="{{ repos_str }}", repl=repos_str, string=output)
 
diff --git a/src/github_api_queries.py b/src/github_api_queries.py
index 0901552..d6ae671 100644
--- a/src/github_api_queries.py
+++ b/src/github_api_queries.py
@@ -137,12 +137,12 @@ def get_user() -> str:
         :return: GraphQL query with user login and name
         """
         return """
-            {{
-                viewer {{
+            {
+                viewer {
                     login
                     name
-                }}
-            }}"""
+                }
+            }"""
 
     @staticmethod
     def repos_overview(