diff --git a/mem2swap.c b/mem2swap.c
--- a/mem2swap.c
+++ b/mem2swap.c
@@ -23,6 +23,9 @@
 #elif __unix__
 #define CMD_FREE "/sbin/sysctl"
 #define CMD_ARGS "hw.usermem"
+#else
+#define CMD_FREE "/sbin/sysctl"
+#define CMD_ARGS "hw.usermem"
 #endif
 
 int set_limit (int);