diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 0000000..6c31bdd
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: ['https://www.buymeacoffee.com/codingalecr']
diff --git a/lib/http_client_with_interceptor.dart b/lib/http_client_with_interceptor.dart
index 0ad89e5..541054c 100644
--- a/lib/http_client_with_interceptor.dart
+++ b/lib/http_client_with_interceptor.dart
@@ -136,7 +136,7 @@ class HttpClientWithInterceptor extends http.BaseClient {
         paramUrl += "$key=$value&";
       });
       paramUrl = paramUrl.substring(
-          0, paramUrl.length); // to remove the last '&' character
+          0, paramUrl.length - 1); // to remove the last '&' character
     }
 
     var requestUrl = Uri.parse(paramUrl);