diff --git a/Overlap/Tests/long_tests.json b/Overlap/Tests/long_tests.json
index 962c4e8de7bc49868c3ac5576d44d7f1e2e7898e..509c7653f518b87208b4aff71bcd9e3e96aa6f14 100644
--- a/Overlap/Tests/long_tests.json
+++ b/Overlap/Tests/long_tests.json
@@ -11,15 +11,15 @@
 	]
     },
     "EGg_1993": {
-	"input": "&config_graph_nml max_delta = 4, cyclone = f/\n&MAIN_NML /\n",
+	"input": "&config_graph_nml max_delta = 4/\n&MAIN_NML I_SLICE=0/\n",
 	"env": {
             "mpiexec": "$mpiexec"
 	},
-	"description": "Global domain, from Matlab results, one year, for performance tests",
+	"description": "A test of performance, global domain, one year.",
 	"command": [
             "$build_dir/Overlap/eddy_graph.sh",
             "1",
-            "$my_data_dir/SHPC_Matlab_1993"
+            "$my_data_dir/Global_1993_2023/SHPC"
 	]
     }
 }