1 files changed, 6 insertions, 0 deletions
diff --git a/class.c b/class.c
index 7ba47e4e26..a75a789ce9 100644
--- a/class.c
+++ b/class.c
@@ -934,6 +934,11 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
 	if (ISDIGIT(*p)) {
 	    n_opt = *p - '0';
 	    p++;
+	    if (ISDIGIT(*p)) {
+		n_trail = *p - '0';
+		p++;
+		goto block_arg;
+	    }
 	}
     }
     if (*p == '*') {
@@ -944,6 +949,7 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
 	    p++;
 	}
     }
+  block_arg:
     if (*p == '&') {
 	f_block = 1;
 	p++;