diff --git a/Source/CTest/cmCTestRunTest.cxx b/Source/CTest/cmCTestRunTest.cxx
index 32c3ef889..ffc257a7f 100644
--- a/Source/CTest/cmCTestRunTest.cxx
+++ b/Source/CTest/cmCTestRunTest.cxx
@@ -435,6 +435,8 @@ bool cmCTestRunTest::CreateProcess(double testTimeOut,
   cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT, this->Index << ": "
              << "Test timeout computed to be: " << timeout << "\n");
 
+  this->TestProcess->SetTimeout(timeout);
+
   if (this->ModifyEnv)
     {
     this->OrigEnv = cmSystemTools::AppendEnv(environment);