diff --git a/backend/src/repositories/PoolsRepository.ts b/backend/src/repositories/PoolsRepository.ts
index d9defaaed..2b6dd5657 100644
--- a/backend/src/repositories/PoolsRepository.ts
+++ b/backend/src/repositories/PoolsRepository.ts
@@ -80,7 +80,7 @@ class PoolsRepository {
   /**
    * Get mining pool statistics for one pool
    */
-   public async $getPool(slug: string): Promise<PoolTag> {
+   public async $getPool(slug: string): Promise<PoolTag | null> {
     const query = `
       SELECT *
       FROM pools
@@ -93,6 +93,11 @@ class PoolsRepository {
       const [rows] = await connection.query(query, [slug]);
       connection.release();
 
+      if (rows.length < 1) {
+        logger.debug(`$getPool(): slug ${slug} does not match any known pool`);
+        return null;
+      }
+
       rows[0].regexes = JSON.parse(rows[0].regexes);
       rows[0].addresses = JSON.parse(rows[0].addresses);
 
diff --git a/backend/src/routes.ts b/backend/src/routes.ts
index e98c718ef..af31d29ed 100644
--- a/backend/src/routes.ts
+++ b/backend/src/routes.ts
@@ -545,7 +545,11 @@ class Routes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(stats);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      if (e instanceof Error && e.message.indexOf('This mining pool does not exist') > -1) {
+        res.status(404).send(e.message);
+      } else {
+        res.status(500).send(e instanceof Error ? e.message : e);
+      }
     }
   }
 
@@ -560,7 +564,11 @@ class Routes {
       res.setHeader('Expires', new Date(Date.now() + 1000 * 60).toUTCString());
       res.json(poolBlocks);
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      if (e instanceof Error && e.message.indexOf('This mining pool does not exist') > -1) {
+        res.status(404).send(e.message);
+      } else {
+        res.status(500).send(e instanceof Error ? e.message : e);
+      }
     }
   }
 
@@ -616,7 +624,11 @@ class Routes {
         hashrates: hashrates,
       });
     } catch (e) {
-      res.status(500).send(e instanceof Error ? e.message : e);
+      if (e instanceof Error && e.message.indexOf('This mining pool does not exist') > -1) {
+        res.status(404).send(e.message);
+      } else {
+        res.status(500).send(e instanceof Error ? e.message : e);
+      }
     }
   }