1 files changed, 0 insertions, 2 deletions
diff --git a/vm_dump.c b/vm_dump.c
index 7667cb616b..f245cccca0 100644
--- a/vm_dump.c
+++ b/vm_dump.c
@@ -103,8 +103,6 @@ control_frame_dump(rb_thread_t *th, rb_control_frame_t *cfp)
 	    iseq_name = "<ifunc>";
 	}
 	else {
-	    int rb_vm_get_sourceline(rb_control_frame_t *);
-
 	    pc = cfp->pc - cfp->iseq->iseq_encoded;
 	    iseq_name = RSTRING_PTR(cfp->iseq->name);
 	    line = rb_vm_get_sourceline(cfp);