diff --git a/test/certs_manager_test.cpp b/test/certs_manager_test.cpp
index 6ab7ae9..f7d5463 100644
--- a/test/certs_manager_test.cpp
+++ b/test/certs_manager_test.cpp
@@ -1760,7 +1760,7 @@
 
     ASSERT_EQ(manager.installAll(sourceAuthoritiesListFile).size(),
               maxNumAuthorityCertificates);
-    EXPECT_THROW(manager.installAll(sourceAuthoritiesListFile).size(),
+    EXPECT_THROW(manager.installAll(sourceAuthoritiesListFile),
                  sdbusplus::xyz::openbmc_project::Common::Error::NotAllowed);
 }