diff --git a/scst/include/scst.h b/scst/include/scst.h
index 673edb93f..c8357a53d 100644
--- a/scst/include/scst.h
+++ b/scst/include/scst.h
@@ -593,7 +593,7 @@ enum scst_exec_context {
 #define SCST_TGT_DEV_UA_PENDING		0
 
 /* Cache of acg->acg_black_hole_type */
-#define SCST_TGT_DEV_BLACK_HOLE	1
+#define SCST_TGT_DEV_BLACK_HOLE		1
 
 /*************************************************************
  ** I/O grouping types. Changing them don't forget to change