diff --git a/route.go b/route.go
index ffad5d39..79cc218e 100644
--- a/route.go
+++ b/route.go
@@ -11,6 +11,24 @@ type Scope uint8
 
 type NextHopFlag int
 
+const (
+	RT_FILTER_PROTOCOL uint64 = 1 << (1 + iota)
+	RT_FILTER_SCOPE
+	RT_FILTER_TYPE
+	RT_FILTER_TOS
+	RT_FILTER_IIF
+	RT_FILTER_OIF
+	RT_FILTER_DST
+	RT_FILTER_SRC
+	RT_FILTER_GW
+	RT_FILTER_TABLE
+	RT_FILTER_HOPLIMIT
+	RT_FILTER_PRIORITY
+	RT_FILTER_MARK
+	RT_FILTER_MASK
+	RT_FILTER_REALM
+)
+
 type Destination interface {
 	Family() int
 	Decode([]byte) error
diff --git a/route_linux.go b/route_linux.go
index 02274711..8da88665 100644
--- a/route_linux.go
+++ b/route_linux.go
@@ -41,23 +41,6 @@ func (s Scope) String() string {
 	}
 }
 
-const (
-	RT_FILTER_PROTOCOL uint64 = 1 << (1 + iota)
-	RT_FILTER_SCOPE
-	RT_FILTER_TYPE
-	RT_FILTER_TOS
-	RT_FILTER_IIF
-	RT_FILTER_OIF
-	RT_FILTER_DST
-	RT_FILTER_SRC
-	RT_FILTER_GW
-	RT_FILTER_TABLE
-	RT_FILTER_HOPLIMIT
-	RT_FILTER_PRIORITY
-	RT_FILTER_MARK
-	RT_FILTER_MASK
-	RT_FILTER_REALM
-)
 
 const (
 	FLAG_ONLINK    NextHopFlag = unix.RTNH_F_ONLINK