diff --git a/src/rba/rbaUtils.cc b/src/rba/rbaUtils.cc
index 8033beab1..45325e2b6 100644
--- a/src/rba/rbaUtils.cc
+++ b/src/rba/rbaUtils.cc
@@ -26,7 +26,7 @@
 #include "rba.h"
 #include "rbaUtils.h"
 
-#if HAVE_RUBY_VERSION_CODE >= 20300
+#if HAVE_RUBY_VERSION_CODE >= 20200
 #  include <ruby/debug.h>
 #endif