diff --git a/SemanticReleaseNotesParser/BuildServers/AppVeyor.cs b/SemanticReleaseNotesParser/BuildServers/AppVeyor.cs
index f98cb5c..fd0afa9 100644
--- a/SemanticReleaseNotesParser/BuildServers/AppVeyor.cs
+++ b/SemanticReleaseNotesParser/BuildServers/AppVeyor.cs
@@ -26,11 +26,12 @@ public bool CanApplyToCurrentContext()
         public void SetEnvironmentVariable(string variable, string value)
         {
             Logger.Debug("AppVeyor API Url: {0}", _appVeyorApiUrl);
-            Logger.Debug("Variable value: {0}", value);
+            var request = string.Format(SetEnvironmentVariableRequest, variable, value);
+            Logger.Debug("Request body: {0}", value);
 
             using (var webClient = _webClientFactory.Create(_appVeyorApiUrl))
             {
-                webClient.UploadData("api/build/variables", "POST", Encoding.UTF8.GetBytes(string.Format(SetEnvironmentVariableRequest, variable, value)));
+                webClient.UploadData("api/build/variables", "POST", Encoding.UTF8.GetBytes(request));
                 Logger.Info("Adding AppVeyor environment variable: {0}.", variable);
             }
         }