diff --git a/service/build.bat b/service/build.bat
index 0e811dad..47f95171 100644
--- a/service/build.bat
+++ b/service/build.bat
@@ -49,6 +49,7 @@ echo ---------------------------------------------------------------------------
 set BEFORE_GIT=%cd%
 
 if exist %TUNNELER_SDK_DIR% (
+    echo %TUNNELER_SDK_DIR% supposedly exists?
     pushd %TUNNELER_SDK_DIR%
     echo ------------------------------------------------------------------------------
     echo issuing git pull to pick up any changes