diff --git a/src/Components/ImageMarker/PatientImageMarker.tsx b/src/Components/ImageMarker/PatientImageMarker.tsx
index 5537bdd..a3018a6 100644
--- a/src/Components/ImageMarker/PatientImageMarker.tsx
+++ b/src/Components/ImageMarker/PatientImageMarker.tsx
@@ -41,9 +41,11 @@ const PatientImageMarker = (props: Props) => {
   };
 
   useEffect(() => {
-    if (action.type === 'add')
-      setEntries([...entries, { index: entries.length + 1, severity: 5 }]);
-    else
+    if (action.type === 'add') {
+      const ind =
+        entries.length != 0 ? entries[entries.length - 1].index + 1 : 1;
+      setEntries([...entries, { index: ind, severity: 5 }]);
+    } else
       setEntries(
         entries.filter((entry: any, ind: number) => ind != action.index)
       );