diff --git a/CTestCustom.cmake.in b/CTestCustom.cmake.in
index ae9d2036f..4055316a9 100644
--- a/CTestCustom.cmake.in
+++ b/CTestCustom.cmake.in
@@ -20,6 +20,7 @@
 
 list(APPEND CTEST_CUSTOM_WARNING_EXCEPTION
   ".*warning: ignoring loop annotation.*"
+  ".*warning: Included by graph for.*not generated, too many nodes. Consider increasing DOT_GRAPH_MAX_NODES."
   ".*diy.include.*diy.mpi.io.hpp.*Wconversion.*"
   ".*diy.include.*diy.mpi.datatypes.hpp.*Wunused-parameter.*"
 )