diff --git a/server/entity/Media.ts b/server/entity/Media.ts
index ed8e588bf..48b04c785 100644
--- a/server/entity/Media.ts
+++ b/server/entity/Media.ts
@@ -205,10 +205,16 @@ class Media {
           ? externalHostname
           : hostname;
       if (this.jellyfinMediaId) {
-        this.mediaUrl = `${jellyfinHost}/web/index.html#!/${pageName}?id=${this.jellyfinMediaId}&context=home&serverId=${serverId}`;
+        this.mediaUrl = new URL(
+          `/web/index.html#!/${pageName}?id=${this.jellyfinMediaId}&context=home&serverId=${serverId}`,
+          jellyfinHost
+        ).href;
       }
       if (this.jellyfinMediaId4k) {
-        this.mediaUrl4k = `${jellyfinHost}/web/index.html#!/${pageName}?id=${this.jellyfinMediaId4k}&context=home&serverId=${serverId}`;
+        this.mediaUrl4k = new URL(
+          `/web/index.html#!/${pageName}?id=${this.jellyfinMediaId4k}&context=home&serverId=${serverId}`,
+          jellyfinHost
+        ).href;
       }
     }
   }
diff --git a/server/routes/auth.ts b/server/routes/auth.ts
index 4b22943e1..35f569fde 100644
--- a/server/routes/auth.ts
+++ b/server/routes/auth.ts
@@ -263,7 +263,10 @@ authRoutes.post('/jellyfin', async (req, res, next) => {
 
       // Update the users avatar with their jellyfin profile pic (incase it changed)
       if (account.User.PrimaryImageTag) {
-        user.avatar = `${jellyfinHost}/Users/${account.User.Id}/Images/Primary/?tag=${account.User.PrimaryImageTag}&quality=90`;
+        user.avatar = new URL(
+          `/Users/${account.User.Id}/Images/Primary/?tag=${account.User.PrimaryImageTag}&quality=90`,
+          jellyfinHost
+        ).href;
       } else {
         user.avatar = '/os_logo_square.png';
       }
@@ -309,7 +312,10 @@ authRoutes.post('/jellyfin', async (req, res, next) => {
           jellyfinAuthToken: account.AccessToken,
           permissions: Permission.ADMIN,
           avatar: account.User.PrimaryImageTag
-            ? `${jellyfinHost}/Users/${account.User.Id}/Images/Primary/?tag=${account.User.PrimaryImageTag}&quality=90`
+            ? new URL(
+                `/Users/${account.User.Id}/Images/Primary/?tag=${account.User.PrimaryImageTag}&quality=90`,
+                jellyfinHost
+              ).href
             : '/os_logo_square.png',
           userType: UserType.JELLYFIN,
         });
@@ -339,7 +345,10 @@ authRoutes.post('/jellyfin', async (req, res, next) => {
           jellyfinAuthToken: account.AccessToken,
           permissions: settings.main.defaultPermissions,
           avatar: account.User.PrimaryImageTag
-            ? `${jellyfinHost}/Users/${account.User.Id}/Images/Primary/?tag=${account.User.PrimaryImageTag}&quality=90`
+            ? new URL(
+                `/Users/${account.User.Id}/Images/Primary/?tag=${account.User.PrimaryImageTag}&quality=90`,
+                jellyfinHost
+              ).href
             : '/os_logo_square.png',
           userType: UserType.JELLYFIN,
         });
diff --git a/server/routes/settings/index.ts b/server/routes/settings/index.ts
index 3a7cb6dfc..2d9fc2ffa 100644
--- a/server/routes/settings/index.ts
+++ b/server/routes/settings/index.ts
@@ -330,7 +330,10 @@ settingsRoutes.get('/jellyfin/users', async (req, res) => {
     username: user.Name,
     id: user.Id,
     thumb: user.PrimaryImageTag
-      ? `${jellyfinHost}/Users/${user.Id}/Images/Primary/?tag=${user.PrimaryImageTag}&quality=90`
+      ? new URL(
+          `/Users/${user.Id}/Images/Primary/?tag=${user.PrimaryImageTag}&quality=90`,
+          jellyfinHost
+        ).href
       : '/os_logo_square.png',
     email: user.Name,
   }));
diff --git a/server/routes/user/index.ts b/server/routes/user/index.ts
index a875ca1fc..258a3eae0 100644
--- a/server/routes/user/index.ts
+++ b/server/routes/user/index.ts
@@ -525,7 +525,10 @@ router.post(
             email: jellyfinUser?.Name,
             permissions: settings.main.defaultPermissions,
             avatar: jellyfinUser?.PrimaryImageTag
-              ? `${jellyfinHost}/Users/${jellyfinUser.Id}/Images/Primary/?tag=${jellyfinUser.PrimaryImageTag}&quality=90`
+              ? new URL(
+                  `/Users/${jellyfinUser.Id}/Images/Primary/?tag=${jellyfinUser.PrimaryImageTag}&quality=90`,
+                  jellyfinHost
+                ).href
               : '/os_logo_square.png',
             userType: UserType.JELLYFIN,
           });