diff --git a/db/lab.json b/db/lab.json
index e5b044fe..d4f76039 100644
--- a/db/lab.json
+++ b/db/lab.json
@@ -58,26 +58,22 @@
 		"Hank Lin" : {
 			"status" : "BS",
 			"projects" : ["astral"],
-			"advisor" : ["Luke Ziarek"],
-			"joint_advisor": true
+			"advisor" : ["Luke Ziarek"]
 		},
 		"Saurav Singhe" : {
 			"status" : "PhD",
 			"projects" : ["astral"],
-			"advisor" : ["Luke Ziarek"],
-			"joint_advisor": true
+			"advisor" : ["Luke Ziarek"]
 		},
 		"Grant Wrazen" : {
 			"status" : "BS",
 			"projects" : ["pocketdata"],
-			"advisor" : ["Luke Ziarek", "Geoff Challen"],
-			"joint_advisor": true
+			"advisor" : ["Luke Ziarek", "Geoff Challen"]
 		},
 		"Lakshmi Prasanna Ethiraj" : {
 			"status" : "BS",
 			"projects" : ["pocketdata"],
-			"advisor" : ["Luke Ziarek", "Geoff Challen"],
-			"joint_advisor": true
+			"advisor" : ["Luke Ziarek", "Geoff Challen"]
 		},
 		"Michael Kulbacki" : {
 			"status" : "BS",
@@ -90,8 +86,11 @@
 		"Aurijoy Majumdar" : {
 			"status" : "MS",
 			"projects" : ["astral"],
-			"advisor" : ["Luke Ziarek"],
-			"joint_advisor": true
+			"advisor" : ["Luke Ziarek"]
+		},
+		"Jon Logan" : {
+		    "status" : "PhD",
+		    "projects" : ["mimir"]
 		}
 	},
 	"collaborators" : [