diff --git a/src/Core/Value.php b/src/Core/Value.php
index 117c01c..2bb8b0b 100644
--- a/src/Core/Value.php
+++ b/src/Core/Value.php
@@ -47,7 +47,7 @@ public function decode($values): mixed
         }
         //$value = (string) $value;
         if ($this->isNumeric()) {
-            return $this;
+            return $this->value;
         }
         else if ($this->isString()) {
             $prefix = $this->getStringPrefix();
diff --git a/tests/CompressJsonBaseTest.php b/tests/CompressJsonBaseTest.php
index acd1c49..9cce0d7 100644
--- a/tests/CompressJsonBaseTest.php
+++ b/tests/CompressJsonBaseTest.php
@@ -130,4 +130,17 @@ public function testSecondValueAsNumericalString()
         // Assert
         $this->assertEquals($data, $decompressed);
     }
+
+    public function testNumericalStringDecompressJson()
+    {
+        //raw json
+        $rawJson = '["0"]';
+        //compress-json.js generated compressed json
+        $compressedJson = '[["0","a|0"],"1"]';
+        $data=json_decode($rawJson,true);
+        $decompressed = Compressor::create()
+            ->decompressJson($compressedJson);
+        // Assert
+        $this->assertSame($data, $decompressed);
+    }
 }
\ No newline at end of file