diff --git a/SystemTools.cxx b/SystemTools.cxx
index 97b2b70ea0c181fef817e79c09196ee5e7212712..79bcb9e3b29b1b2cb47ba091d7dfd06855f2b3d0 100644
--- a/SystemTools.cxx
+++ b/SystemTools.cxx
@@ -3203,7 +3203,7 @@ void SystemTools::ConvertWindowsCommandLineToUnixArguments(
 
   // Grab the args
 
-  size_t pos = 0;
+  size_t pos;
   int argc_idx = 1;
 
   for (i = 0; i < cmd_line_len; i++)