diff --git a/cmake/QtProcessConfigureArgs.cmake b/cmake/QtProcessConfigureArgs.cmake
index 18845b9ccb..55c4fbfe05 100644
--- a/cmake/QtProcessConfigureArgs.cmake
+++ b/cmake/QtProcessConfigureArgs.cmake
@@ -68,7 +68,7 @@ while(configure_args)
         calculate_state()
         list(POP_FRONT configure_args feature)
         push("-DFEATURE_${feature}=${state}")
-    elseif(arg MATCHES "^-(no-)pch")
+    elseif(arg MATCHES "^-(no-)?pch")
         calculate_state()
         push("-DBUILD_WITH_PCH=${state}")
     elseif(arg MATCHES "^-system-(.*)")