diff --git a/CTestCustom.cmake.in b/CTestCustom.cmake.in
index 2a6ce0604..343f9b0ad 100644
--- a/CTestCustom.cmake.in
+++ b/CTestCustom.cmake.in
@@ -53,4 +53,7 @@ SET(CTEST_CUSTOM_COVERAGE_EXCLUDE
 
   # Exclude try_compile sources from coverage results:
   "/CMakeFiles/CMakeTmp/"
+
+  # Exclude Qt source files from coverage results:
+  "[A-Za-z]./[Qq]t/qt-.+-opensource-src"
   )