diff --git a/test/ruby/test_yjit.rb b/test/ruby/test_yjit.rb
index c91d6312560ec6..5f0a5035b0a4fc 100644
--- a/test/ruby/test_yjit.rb
+++ b/test/ruby/test_yjit.rb
@@ -1150,6 +1150,8 @@ def test_code_gc_with_many_iseqs
   end
 
   def test_code_gc_with_auto_compact
+    omit "compaction is not supported on this platform" unless GC.respond_to?(:compact)
+
     assert_compiles((code_gc_helpers + <<~'RUBY'), exits: :any, result: :ok, mem_size: 1, code_gc: true)
       # Test ISEQ moves in the middle of code GC
       GC.auto_compact = true
@@ -1278,6 +1280,8 @@ def foo(_, a, b, c)
   end
 
   def test_gc_compact_cyclic_branch
+    omit "compaction is not supported on this platform" unless GC.respond_to?(:compact)
+
     assert_compiles(<<~'RUBY', result: 2)
       def foo
         i = 0