diff --git a/src/lib/filters/entities.js b/src/lib/filters/entities.js
index 17fa9ad8..8141084f 100644
--- a/src/lib/filters/entities.js
+++ b/src/lib/filters/entities.js
@@ -92,7 +92,9 @@ export const shouldKeepEntityByAttribute = (
 
   const isValid = Object.keys(whitelist).every((attr) => {
     const regex = new RegExp(whitelist[attr])
-    return regex.test(data[attr])
+    const hasData = data.hasOwnProperty(attr)
+
+    return hasData && regex.test(data[attr])
   })
 
   return isValid
diff --git a/src/lib/filters/entities.test.js b/src/lib/filters/entities.test.js
index 8f0b24a7..4ab89b32 100644
--- a/src/lib/filters/entities.test.js
+++ b/src/lib/filters/entities.test.js
@@ -224,6 +224,26 @@ describe("entities", () => {
       })
     })
 
+    it("attribute not defined on entities", () => {
+      expect(
+        shouldKeepEntityByAttribute(
+          [
+            {
+              type: "LINK",
+              whitelist: {
+                id: ".*",
+              },
+            },
+          ],
+          "LINK",
+          {
+            href: "#_msocom_1",
+            target: "_blank",
+          },
+        ),
+      ).toBe(false)
+    })
+
     describe("defaults", () => {
       it("missing config", () => {
         expect(