diff --git a/src/eval.c b/src/eval.c
index f4f3c7a..87333c2 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -5872,7 +5872,8 @@
     return item1 == NULL && item2 == NULL;
 }
 
-#if defined(FEAT_PYTHON) || defined(FEAT_MZSCHEME) || defined(PROTO)
+#if defined(FEAT_RUBY) || defined(FEAT_PYTHON) || defined(FEAT_MZSCHEME) \
+	|| defined(PROTO)
 /*
  * Return the dictitem that an entry in a hashtable points to.
  */