diff --git a/libwvdrmengine/cdm/core/test/cdm_engine_test.cpp b/libwvdrmengine/cdm/core/test/cdm_engine_test.cpp
index aa44c262..a70109ed 100644
--- a/libwvdrmengine/cdm/core/test/cdm_engine_test.cpp
+++ b/libwvdrmengine/cdm/core/test/cdm_engine_test.cpp
@@ -147,7 +147,8 @@ class WvCdmEngineTest : public testing::Test {
     EXPECT_TRUE(ok);
 
     int status_code = url_request.GetStatusCode(response);
-    if (expect_success) EXPECT_EQ(kHttpOk, status_code);
+    if (expect_success) EXPECT_EQ(kHttpOk, status_code)
+                            << "Error response: " << response;
 
     if (status_code != kHttpOk) {
       return "";