diff --git a/Source/CursesDialog/cmCursesMainForm.cxx b/Source/CursesDialog/cmCursesMainForm.cxx
index 283c43d80..ccd27ac3c 100644
--- a/Source/CursesDialog/cmCursesMainForm.cxx
+++ b/Source/CursesDialog/cmCursesMainForm.cxx
@@ -651,6 +651,7 @@ int cmCursesMainForm::Configure(int noconfigure)
   if ( noconfigure )
     {
     retVal = this->m_CMakeInstance->DoPreConfigureChecks();
+    m_OkToGenerate = false;
     if ( retVal > 0 )
       {
       retVal = 0;