diff --git a/Lib/distutils/cygwinccompiler.py b/Lib/distutils/cygwinccompiler.py
index 94a7bd9..2dabc0f 100644
--- a/Lib/distutils/cygwinccompiler.py
+++ b/Lib/distutils/cygwinccompiler.py
@@ -76,7 +76,7 @@
             # VS2008 / MSVC 9.0
             return ['msvcr90']
         else:
-            raise ValueError("Unknown MS Compiler version %i " % msc_Ver)
+            raise ValueError("Unknown MS Compiler version %s " % msc_ver)
 
 
 class CygwinCCompiler (UnixCCompiler):