diff --git a/cmake/macos/resources/ccache-launcher-c.in b/cmake/macos/resources/ccache-launcher-c.in
index aef91a405..173e27553 100644
--- a/cmake/macos/resources/ccache-launcher-c.in
+++ b/cmake/macos/resources/ccache-launcher-c.in
@@ -4,7 +4,6 @@ if [[ "$1" == "${CMAKE_C_COMPILER}" ]] ; then
     shift
 fi
 
-export CCACHE_CPP2=true
 export CCACHE_DEPEND=true
 export CCACHE_DIRECT=true
 export CCACHE_FILECLONE=true
diff --git a/cmake/macos/resources/ccache-launcher-cxx.in b/cmake/macos/resources/ccache-launcher-cxx.in
index 76c81ee02..615025214 100644
--- a/cmake/macos/resources/ccache-launcher-cxx.in
+++ b/cmake/macos/resources/ccache-launcher-cxx.in
@@ -4,7 +4,6 @@ if [[ "$1" == "${CMAKE_CXX_COMPILER}" ]] ; then
     shift
 fi
 
-export CCACHE_CPP2=true
 export CCACHE_DEPEND=true
 export CCACHE_DIRECT=true
 export CCACHE_FILECLONE=true