diff --git a/sed.c b/sed.c
index 6e07143..81d693a 100644
--- a/sed.c
+++ b/sed.c
@@ -1691,6 +1691,7 @@ main(int argc, char *argv[])
 	case 'n':
 		gflags.n = 1;
 		break;
+	case 'r':
 	case 'E':
 		gflags.E = 1;
 		break;