diff --git a/utils/build_script_windows.bat b/utils/build_script_windows.bat
index 8b156afa..9238a5aa 100644
--- a/utils/build_script_windows.bat
+++ b/utils/build_script_windows.bat
@@ -169,11 +169,19 @@ IF %ERRORLEVEL% NEQ 0 (
 @echo "---------------------------------------------------------------"
 @echo "---------------------------------------------------------------"
 
-@echo "   UPLOADING TO SERVER ...."
-
 set installer_file=%ACHIVE_NAME_PREFIX%%version%-installer.exe
 set installer_path=%BUILDS_PATH%\builds\%installer_file%
 
+@echo "   SIGNING ...."
+
+%ZANO_SIGN_CMD% %installer_path%
+IF %ERRORLEVEL% NEQ 0 (
+  @echo "failed to sign installer"
+  goto error
+)
+
+@echo "   UPLOADING TO SERVER ...."
+
 pscp -load zano_build_server %installer_path% build.zano.org:/var/www/html/builds
 IF %ERRORLEVEL% NEQ 0 (
   @echo "FAILED TO UPLOAD EXE TO SERVER"