diff --git a/unittest/fortran/wrap_properties.cpp b/unittest/fortran/wrap_properties.cpp
index d2daa22cf4..59e98891c3 100644
--- a/unittest/fortran/wrap_properties.cpp
+++ b/unittest/fortran/wrap_properties.cpp
@@ -133,6 +133,6 @@ TEST_F(LAMMPS_properties, has_error)
     char errmsg[1024];
     int err = f_lammps_get_last_error_message(errmsg, 1023);
     EXPECT_EQ(err, 1);
-    EXPECT_THAT(errmsg, ContainsRegex(".*ERRORx: Unknown command: this_is_not_a_known_command.*"));
+    EXPECT_THAT(errmsg, ContainsRegex(".*ERROR: Unknown command: this_is_not_a_known_command.*"));
 };
 } // namespace LAMMPS_NS