diff --git a/.github/workflows/test-ruby.yaml b/.github/workflows/test-ruby.yaml
index f7efd1494..802a57b6b 100644
--- a/.github/workflows/test-ruby.yaml
+++ b/.github/workflows/test-ruby.yaml
@@ -59,6 +59,8 @@ jobs:
         run: |
           rvm use system
           make test_ruby
+      - name: Uninstall RubyThemis
+        run: sudo make rbthemis_uninstall
 
   examples:
     name: Code examples
diff --git a/Makefile b/Makefile
index d4eaba55a..ca74b90a8 100644
--- a/Makefile
+++ b/Makefile
@@ -583,7 +583,7 @@ else
 	@exit 1
 endif
 
-rbthemis_uninstall: CMD = gem uninstall themis
+rbthemis_uninstall: CMD = gem uninstall rbthemis
 rbthemis_uninstall:
 ifdef RUBY_GEM_VERSION
 	@echo -n "rbthemis uninstall "