diff --git a/mrbgems/mruby-inline-struct/mrbgem.rake b/mrbgems/mruby-test-inline-struct/mrbgem.rake
similarity index 59%
rename from mrbgems/mruby-inline-struct/mrbgem.rake
rename to mrbgems/mruby-test-inline-struct/mrbgem.rake
index 91ad9f44b..6cbca5417 100644
--- a/mrbgems/mruby-inline-struct/mrbgem.rake
+++ b/mrbgems/mruby-test-inline-struct/mrbgem.rake
@@ -1,4 +1,4 @@
-MRuby::Gem::Specification.new('mruby-inline-struct') do |spec|
+MRuby::Gem::Specification.new('mruby-test-inline-struct') do |spec|
   spec.license = 'MIT'
   spec.author  = 'mruby developers'
   spec.summary = 'inline structure'
diff --git a/mrbgems/mruby-inline-struct/test/inline.c b/mrbgems/mruby-test-inline-struct/test/inline.c
similarity index 97%
rename from mrbgems/mruby-inline-struct/test/inline.c
rename to mrbgems/mruby-test-inline-struct/test/inline.c
index 16d16fa4d..7537bffc6 100644
--- a/mrbgems/mruby-inline-struct/test/inline.c
+++ b/mrbgems/mruby-test-inline-struct/test/inline.c
@@ -70,7 +70,7 @@ istruct_test_mutate(mrb_state *mrb, mrb_value self)
   return mrb_nil_value();
 }
 
-void mrb_mruby_inline_struct_gem_test(mrb_state *mrb)
+void mrb_mruby_test_inline_struct_gem_test(mrb_state *mrb)
 {
   struct RClass *cls;
 
diff --git a/mrbgems/mruby-inline-struct/test/inline.rb b/mrbgems/mruby-test-inline-struct/test/inline.rb
similarity index 100%
rename from mrbgems/mruby-inline-struct/test/inline.rb
rename to mrbgems/mruby-test-inline-struct/test/inline.rb