diff --git a/qtruby/bin/rbqtapi b/qtruby/bin/rbqtapi
index fa6a980d..8914a38f 100755
--- a/qtruby/bin/rbqtapi
+++ b/qtruby/bin/rbqtapi
@@ -1,4 +1,4 @@
-#!/usr/bin/env ruby1.8
+#!/usr/bin/env ruby
 
 # Note: this program is part of qtruby and makes use of its internal functions.
 #       You should not rely on those in your own programs.
diff --git a/qtruby/bin/rbqtsh b/qtruby/bin/rbqtsh
index ee3a8d4f..413a037f 100755
--- a/qtruby/bin/rbqtsh
+++ b/qtruby/bin/rbqtsh
@@ -1,4 +1,4 @@
-#!/usr/bin/env ruby1.8
+#!/usr/bin/env ruby
 
 # rbqtsh : a graphical shell for qtruby.
 #