diff --git a/cmake/ExternalAntlr4Cpp.cmake b/cmake/ExternalAntlr4Cpp.cmake
index 0292d6b..c1c2681 100644
--- a/cmake/ExternalAntlr4Cpp.cmake
+++ b/cmake/ExternalAntlr4Cpp.cmake
@@ -99,7 +99,7 @@ if(ANTLR4_ZIP_REPOSITORY)
             -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
             -DWITH_STATIC_CRT:BOOL=${ANTLR4_WITH_STATIC_CRT}
             -DDISABLE_WARNINGS:BOOL=ON
-            # -DCMAKE_CXX_STANDARD:STRING=17 # if desired, compile the runtime with a different C++ standard
+            -DCMAKE_CXX_STANDARD:STRING=17 # if desired, compile the runtime with a different C++ standard
             # -DCMAKE_CXX_STANDARD:STRING=${CMAKE_CXX_STANDARD} # alternatively, compile the runtime with the same C++ standard as the outer project
             INSTALL_COMMAND ""
             EXCLUDE_FROM_ALL 1)
@@ -119,8 +119,8 @@ else()
             -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
             -DWITH_STATIC_CRT:BOOL=${ANTLR4_WITH_STATIC_CRT}
             -DDISABLE_WARNINGS:BOOL=ON
-            # -DCMAKE_CXX_STANDARD:STRING=17 # if desired, compile the runtime with a different C++ standard
-            -DCMAKE_CXX_STANDARD:STRING=${CMAKE_CXX_STANDARD} # alternatively, compile the runtime with the same C++ standard as the outer project
+            -DCMAKE_CXX_STANDARD:STRING=17 # if desired, compile the runtime with a different C++ standard
+            # -DCMAKE_CXX_STANDARD:STRING=${CMAKE_CXX_STANDARD} # alternatively, compile the runtime with the same C++ standard as the outer project
             INSTALL_COMMAND ""
             EXCLUDE_FROM_ALL 1)
 endif()