diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a09ed17f5afa4c..cc03e4a2487ea8 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -637,9 +637,14 @@ install(TARGETS ceph-mon DESTINATION bin)
 if(NOT ALLOCATOR STREQUAL "jemalloc")
   set(disable_jemalloc "DISABLE_JEMALLOC=1")
 endif()
+set(EXTRA_CXXFLAGS -fPIC -Wno-unused-variable -DNDEBUG)
+if(FREEBSD)
+  set(EXTRA_CXXFLAGS ${EXTRA_CXXFLAGS} -Irocksdb/include -I/usr/local/include)
+  set(MAKEFLAGS ${MAKEFLAGS})
+endif(FREEBSD)
 add_custom_target(build_rocksdb
     COMMAND
-    PORTABLE=1 ${disable_jemalloc} $(MAKE) static_lib EXTRA_CXXFLAGS='-fPIC -Wno-unused-variable'
+    PORTABLE=1 ${disable_jemalloc} $(MAKE) ${MAKEFLAGS} static_lib CXX="${CMAKE_CXX_COMPILER}" EXTRA_CXXFLAGS="${EXTRA_CXXFLAGS}"
     WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/src/rocksdb
     COMMENT "rocksdb building")