diff --git a/test/Makefile.am b/test/Makefile.am
index bac5b06..dab0f4e 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -8,7 +8,7 @@
 SUBDIRS += py
 endif
 
-if ENABLE_RUBY
+if WITH_RUBY
 SUBDIRS += rb
 endif