1 files changed, 0 insertions, 1 deletions
diff --git a/parse.y b/parse.y
index f253922306..57ccfc02d6 100644
--- a/parse.y
+++ b/parse.y
@@ -5111,7 +5111,6 @@ debug_lines(const char *f)
 static VALUE
 coverage(const char *f, int n)
 {
-    extern VALUE rb_get_coverages(void);
     VALUE coverages = rb_get_coverages();
     if (RTEST(coverages) && RBASIC(coverages)->klass == 0) {
 	VALUE fname = rb_str_new2(f);