diff --git a/CMakeLists.txt b/CMakeLists.txt
index d853b166..bcaab079 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -442,7 +442,6 @@ if(CMAKE_C_COMPILER_ID MATCHES GNU|Clang)
                 -Wc11-extensions
                 -Wc2x-compat
                 -Wc2x-extensions
-                -Wpre-c2x-compat
                 -Warray-bounds-pointer-arithmetic
                 -Wassign-enum
                 -Wconditional-uninitialized
diff --git a/configure.ac b/configure.ac
index 3c0ab6b6..dcbdf840 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1353,7 +1353,6 @@ AS_IF([test "$GCC" = yes], [
 			-Wc11-extensions \
 			-Wc2x-compat \
 			-Wc2x-extensions \
-			-Wpre-c2x-compat \
 			-Warray-bounds-pointer-arithmetic \
 			-Wassign-enum \
 			-Wconditional-uninitialized \