diff --git a/lib/build/user.js b/lib/build/user.js
index 5179ebc6f..480f66b89 100644
--- a/lib/build/user.js
+++ b/lib/build/user.js
@@ -20,6 +20,9 @@ class LoginMethod {
         this.verified = loginMethod.verified;
     }
     hasSameEmailAs(email) {
+        if (this.email === undefined && email === undefined) {
+            return true;
+        }
         if (email === undefined) {
             return false;
         }
@@ -28,6 +31,9 @@ class LoginMethod {
         return this.email !== undefined && this.email === email;
     }
     hasSamePhoneNumberAs(phoneNumber) {
+        if (this.phoneNumber === undefined && phoneNumber === undefined) {
+            return true;
+        }
         if (phoneNumber === undefined) {
             return false;
         }
@@ -42,6 +48,9 @@ class LoginMethod {
         return this.phoneNumber !== undefined && this.phoneNumber === phoneNumber;
     }
     hasSameThirdPartyInfoAs(thirdParty) {
+        if (this.thirdParty === undefined && thirdParty === undefined) {
+            return true;
+        }
         if (thirdParty === undefined) {
             return false;
         }
diff --git a/lib/ts/user.ts b/lib/ts/user.ts
index 365e0f846..e4f10f342 100644
--- a/lib/ts/user.ts
+++ b/lib/ts/user.ts
@@ -29,6 +29,9 @@ export class LoginMethod implements RecipeLevelUser {
     }
 
     hasSameEmailAs(email: string | undefined): boolean {
+        if (this.email === undefined && email === undefined) {
+            return true;
+        }
         if (email === undefined) {
             return false;
         }
@@ -38,6 +41,9 @@ export class LoginMethod implements RecipeLevelUser {
     }
 
     hasSamePhoneNumberAs(phoneNumber: string | undefined): boolean {
+        if (this.phoneNumber === undefined && phoneNumber === undefined) {
+            return true;
+        }
         if (phoneNumber === undefined) {
             return false;
         }
@@ -53,6 +59,9 @@ export class LoginMethod implements RecipeLevelUser {
     }
 
     hasSameThirdPartyInfoAs(thirdParty?: { id: string; userId: string }): boolean {
+        if (this.thirdParty === undefined && thirdParty === undefined) {
+            return true;
+        }
         if (thirdParty === undefined) {
             return false;
         }