diff --git a/build-support/macros-and-definitions.cmake b/build-support/macros-and-definitions.cmake
index 64abbf608..c93ecc2a7 100644
--- a/build-support/macros-and-definitions.cmake
+++ b/build-support/macros-and-definitions.cmake
@@ -1398,10 +1398,9 @@ macro(build_example)
   # Filter examples out if they don't contain one of the filtered in modules
   set(filtered_in ON)
   if(NS3_FILTER_MODULE_EXAMPLES_AND_TESTS)
-    set(filtered_in OFF)
-    foreach(filtered_module NS3_FILTER_MODULE_EXAMPLES_AND_TESTS)
-      if(${filtered_module} IN_LIST EXAMPLE_LIBRARIES_TO_LINK)
-        set(filtered_in ON)
+    foreach(required_module EXAMPLE_LIBRARIES_TO_LINK)
+      if(NOT (${required_module} IN_LIST NS3_FILTER_MODULE_EXAMPLES_AND_TESTS))
+        set(filtered_in OFF)
       endif()
     endforeach()
   endif()