1 files changed, 1 insertions, 1 deletions
diff --git a/lib/irb/init.rb b/lib/irb/init.rb
index c50e3421ec..a971b75ac3 100644
--- a/lib/irb/init.rb
+++ b/lib/irb/init.rb
@@ -277,7 +277,7 @@ module IRB # :nodoc:
       begin
         require m
       rescue LoadError => err
-        warn ":#{err.class}: #{err}", uplevel: 0
+        warn "#{err.class}: #{err}", uplevel: 0
       end
     end
   end