diff --git a/CMake/CTestCustom.cmake.in b/CMake/CTestCustom.cmake.in
index aceefe6ada34cea350d4642f48a53cf54a317cfc..541fca59caf8d1add525215b4e693f98323fb479 100644
--- a/CMake/CTestCustom.cmake.in
+++ b/CMake/CTestCustom.cmake.in
@@ -62,6 +62,7 @@ set(CTEST_CUSTOM_WARNING_EXCEPTION
   ".*Microsoft.*include.*.h.*[Ww]arning.*"
   ".*gdal_priv.h.*[Ww]arning.*"
   ".*cpl_string.h.*[Ww]arning.*"
+  "*otbmuparserx*"
 
   # Ignore clang's summary warning, assuming prior text has matched some
   # other warning expression: