diff --git a/build-support/custom-modules/ns3-compiler-and-linker-support.cmake b/build-support/custom-modules/ns3-compiler-and-linker-support.cmake
index fe8d44567..0b86af45d 100644
--- a/build-support/custom-modules/ns3-compiler-and-linker-support.cmake
+++ b/build-support/custom-modules/ns3-compiler-and-linker-support.cmake
@@ -47,6 +47,7 @@ if(CLANG)
 endif()
 
 set(GCC FALSE)
+set(GCC_WORKING_PEDANTIC_SEMICOLON 1)
 if("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
   if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${GNU_MinVersion})
     message(