diff --git a/Source/kwsys/SharedForward.h.in b/Source/kwsys/SharedForward.h.in
index 87f53dc018..aab2ede94d 100644
--- a/Source/kwsys/SharedForward.h.in
+++ b/Source/kwsys/SharedForward.h.in
@@ -512,6 +512,9 @@ static void kwsys_shared_forward_execvp(const char* cmd, char* const* argv)
   /* Invoke the child process.  */
 #if defined(_MSC_VER)
   _execvp(cmd, argv);
+#elif defined(__MINGW32__)
+   /* Avoid incompatible pointer warning with a cast.  */
+  execvp(cmd, (char const* const*)argv);
 #else
   execvp(cmd, argv);
 #endif