diff --git a/lib/kafs/afssysdefs.h b/lib/kafs/afssysdefs.h
index 45c3f5a40..58e3abbd4 100644
--- a/lib/kafs/afssysdefs.h
+++ b/lib/kafs/afssysdefs.h
@@ -50,7 +50,7 @@
 #define AFS_SYSCALL	105
 #endif
 
-#if SunOS == 57
+#if SunOS >= 57
 #define AFS_SYSCALL	73
 #endif