diff --git a/test/openssl/test_pair.rb b/test/openssl/test_pair.rb
index f22183446f..0d9ad0b8d0 100644
--- a/test/openssl/test_pair.rb
+++ b/test/openssl/test_pair.rb
@@ -24,6 +24,7 @@ module OpenSSL::SSLPairM
       sctx.cert = @svr_cert
       sctx.key = @svr_key
       sctx.tmp_dh_callback = proc { OpenSSL::TestUtils::Fixtures.pkey_dh("dh1024") }
+      sctx.options |= OpenSSL::SSL::OP_NO_COMPRESSION
       ssls = OpenSSL::SSL::SSLServer.new(tcps, sctx)
       ns = ssls.accept
       ssls.close
diff --git a/test/openssl/test_ssl.rb b/test/openssl/test_ssl.rb
index 3f17ab0d38..d60f031b99 100644
--- a/test/openssl/test_ssl.rb
+++ b/test/openssl/test_ssl.rb
@@ -1015,6 +1015,7 @@ if openssl?(1, 0, 2) || libressl?
     ctx1 = OpenSSL::SSL::SSLContext.new
     ctx1.cert = @svr_cert
     ctx1.key = @svr_key
+    ctx1.tmp_dh_callback = proc { Fixtures.pkey_dh("dh1024") }
     ctx1.alpn_select_cb = -> (protocols) { nil }
     ssl1 = OpenSSL::SSL::SSLSocket.new(sock1, ctx1)