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-rw-r--r--lib/rubygems/command_manager.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/rubygems/command_manager.rb b/lib/rubygems/command_manager.rb
index c53f0231af..1028283ffa 100644
--- a/lib/rubygems/command_manager.rb
+++ b/lib/rubygems/command_manager.rb
@@ -249,6 +249,7 @@ class Gem::CommandManager
def invoke_command(args, build_args)
cmd_name = args.shift.downcase
cmd = find_command cmd_name
+ terminate_interaction 1 unless cmd
cmd.deprecation_warning if cmd.deprecated?
cmd.invoke_with_build_args args, build_args
end