diff --git a/CMakeLists.txt b/CMakeLists.txt
index 52ff13e..15f0551 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,7 +14,7 @@ include(GNUInstallDirs)
 # Note: -Werror is applied per-target in src/CMakeLists.txt to avoid
 # breaking bundled submodules (libcork, libipset, libbloom)
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -D_GNU_SOURCE")
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O2 -Wall -Wno-deprecated-declarations -fno-strict-aliasing")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O2 -Wall -Wno-discarded-qualifiers -Wno-deprecated-declarations -fno-strict-aliasing")
 
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib)
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib)