diff --git a/extra/unix/linux/swap/swap.factor b/extra/unix/linux/swap/swap.factor
new file mode 100644
index 0000000000..4cafa5723f
--- /dev/null
+++ b/extra/unix/linux/swap/swap.factor
@@ -0,0 +1,12 @@
+
+USING: alien.syntax ;
+
+IN: unix.linux.swap
+
+: SWAP_FLAG_PREFER	HEX: 8000 ; ! Set if swap priority is specified.
+: SWAP_FLAG_PRIO_MASK	HEX: 7fff ;
+: SWAP_FLAG_PRIO_SHIFT	0 ;
+
+FUNCTION: int swapon ( char* path, int flags ) ;
+
+FUNCTION: int swapoff ( char* path ) ;
\ No newline at end of file