diff --git a/src/pages/SystemView.tsx b/src/pages/SystemView.tsx
index a344613..54b1682 100644
--- a/src/pages/SystemView.tsx
+++ b/src/pages/SystemView.tsx
@@ -37,9 +37,11 @@ export const SystemView = () => {
         const updatedSignature: Pick<Signature, 'updated' | 'type' | 'signame' | 'scanned'> = {
           updated: new Date().toISOString()
         }
-        if (existingRecord.type == "" && signature.type != "")
+        // Existing record has no type and our new signature has a type
+        if (!!!existingRecord.type && !!signature.type)
           updatedSignature.type = signature.type;
-        if (existingRecord.signame == "" && signature.signame != "")
+        // Existing record has no signame and our new signature has a signame
+        if (!!!existingRecord.signame && !!signature.signame)
           updatedSignature.signame = signature.signame;
         // Update existing signature only if new scan percentage is higher
         const existingScannedPercentage = parseScannedPercentage(existingRecord.scanned);