diff --git a/src/leveldb/build_detect_platform b/src/leveldb/build_detect_platform
index 609cb51224..a3ad057eee 100755
--- a/src/leveldb/build_detect_platform
+++ b/src/leveldb/build_detect_platform
@@ -94,6 +94,12 @@ case "$TARGET_OS" in
         PLATFORM_LIBS="-lpthread"
         PORT_FILE=port/port_posix.cc
         ;;
+    GNU/kFreeBSD)
+        PLATFORM=OS_KFREEBSD
+        COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_KFREEBSD"
+        PLATFORM_LIBS="-lpthread"
+        PORT_FILE=port/port_posix.cc
+        ;;
     NetBSD)
         PLATFORM=OS_NETBSD
         COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_NETBSD"