diff --git a/CTestCustom.cmake.in b/CTestCustom.cmake.in
index af83f1a02..68f0dedd0 100644
--- a/CTestCustom.cmake.in
+++ b/CTestCustom.cmake.in
@@ -39,3 +39,14 @@ IF(NOT "@CMAKE_GENERATOR@" MATCHES "KDevelop")
     "Kdevelop"
     )
 ENDIF (NOT "@CMAKE_GENERATOR@" MATCHES "KDevelop")
+
+SET(CTEST_CUSTOM_COVERAGE_EXCLUDE
+  ${CTEST_CUSTOM_COVERAGE_EXCLUDE}
+
+  # Exclude kwsys files from coverage results. They are reported
+  # (with better coverage results) on kwsys dashboards...
+  "/Source/(cm|kw)sys/"
+
+  # Exclude try_compile sources from coverage results:
+  "/CMakeFiles/CMakeTmp/"
+  )