diff --git a/spec/regression/GH-1446_line_number_in_warnings.rb b/spec/regression/GH-1446_line_number_in_warnings_spec.rb
similarity index 100%
rename from spec/regression/GH-1446_line_number_in_warnings.rb
rename to spec/regression/GH-1446_line_number_in_warnings_spec.rb
diff --git a/spec/regression/GH-1551_Fixnumto_s_generates_immutable_string.rb b/spec/regression/GH-1551_Fixnumto_s_generates_immutable_string_spec.rb
similarity index 100%
rename from spec/regression/GH-1551_Fixnumto_s_generates_immutable_string.rb
rename to spec/regression/GH-1551_Fixnumto_s_generates_immutable_string_spec.rb
diff --git a/spec/regression/GH-1578_bigdecimal_to_i_with_no_args.rb b/spec/regression/GH-1578_bigdecimal_to_i_with_no_args_spec.rb
similarity index 100%
rename from spec/regression/GH-1578_bigdecimal_to_i_with_no_args.rb
rename to spec/regression/GH-1578_bigdecimal_to_i_with_no_args_spec.rb
diff --git a/spec/regression/GH-1590_Hash-hash_fails_when_keys_and_values_are_the_same.rb b/spec/regression/GH-1590_Hash-hash_fails_when_keys_and_values_are_the_same_spec.rb
similarity index 100%
rename from spec/regression/GH-1590_Hash-hash_fails_when_keys_and_values_are_the_same.rb
rename to spec/regression/GH-1590_Hash-hash_fails_when_keys_and_values_are_the_same_spec.rb
diff --git a/spec/regression/GH-1969_duplicate_underscore_block_arg.rb b/spec/regression/GH-1969_duplicate_underscore_block_arg_spec.rb
similarity index 100%
rename from spec/regression/GH-1969_duplicate_underscore_block_arg.rb
rename to spec/regression/GH-1969_duplicate_underscore_block_arg_spec.rb
diff --git a/spec/regression/GH-357_openssl_rsa_key_creation_returns_wrong_value.rb b/spec/regression/GH-357_openssl_rsa_key_creation_returns_wrong_value_spec.rb
similarity index 100%
rename from spec/regression/GH-357_openssl_rsa_key_creation_returns_wrong_value.rb
rename to spec/regression/GH-357_openssl_rsa_key_creation_returns_wrong_value_spec.rb
diff --git a/spec/regression/JRUBY-5946_IO_select_write_nil.rb b/spec/regression/JRUBY-5946_IO_select_write_nil_spec.rb
similarity index 100%
rename from spec/regression/JRUBY-5946_IO_select_write_nil.rb
rename to spec/regression/JRUBY-5946_IO_select_write_nil_spec.rb
diff --git a/spec/regression/java_proxy_clear_last_exception.rb b/spec/regression/java_proxy_clear_last_exception_spec.rb
similarity index 100%
rename from spec/regression/java_proxy_clear_last_exception.rb
rename to spec/regression/java_proxy_clear_last_exception_spec.rb