diff --git a/compile.c b/compile.c
index e136db3752..9cba0b5d7e 100644
--- a/compile.c
+++ b/compile.c
@@ -2163,6 +2163,7 @@ iseq_set_sequence(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
 		      case TS_ISE: /* inline storage entry */
 			/* Treated as an IC, but may contain a markable VALUE */
 			FL_SET(iseq, ISEQ_MARKABLE_ISEQ);
+                        /* fall through */
 		      case TS_IC: /* inline cache */
 			{
 			    unsigned int ic_index = FIX2UINT(operands[j]);