diff --git a/src/normal.c b/src/normal.c
index 869ada3..4d0bbdb 100644
--- a/src/normal.c
+++ b/src/normal.c
@@ -9412,14 +9412,15 @@
 # ifdef FEAT_CLIPBOARD
 	    adjust_clip_reg(&regname);
 # endif
-	    if (regname == 0 || regname == '"' || VIM_ISDIGIT(regname)
+           if (regname == 0 || regname == '"'
+				     || VIM_ISDIGIT(regname) || regname == '-'
 # ifdef FEAT_CLIPBOARD
 		    || (clip_unnamed && (regname == '*' || regname == '+'))
 # endif
 
 		    )
 	    {
-		/* the delete is going to overwrite the register we want to
+		/* The delete is going to overwrite the register we want to
 		 * put, save it first. */
 		reg1 = get_register(regname, TRUE);
 	    }