diff --git a/fcst/fcst.h b/fcst/fcst.h
index d1846c6d8..2afd3c08a 100644
--- a/fcst/fcst.h
+++ b/fcst/fcst.h
@@ -19,9 +19,15 @@
 
 #ifdef INSIDE_KERNEL_TREE
 #include <scst/scst.h>
+#define NEW_LIBFC_API
 #else
 #include <linux/version.h>
 #include "scst.h"
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0) || \
+	defined(CONFIG_SUSE_KERNEL) && \
+	LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 0)
+#define NEW_LIBFC_API
+#endif
 #endif
 
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0) || \