diff --git a/src/DocBlock/Tags/Mixin.php b/src/DocBlock/Tags/Mixin.php
index f0d1fa6..c15d30c 100644
--- a/src/DocBlock/Tags/Mixin.php
+++ b/src/DocBlock/Tags/Mixin.php
@@ -48,17 +48,4 @@ final class Mixin extends TagWithType implements Factory\StaticMethod
 
         return new static($type, $description);
     }
-
-    public function __toString(): string
-    {
-        if ($this->description) {
-            $description = $this->description->render();
-        } else {
-            $description = '';
-        }
-
-        $type = (string) $this->type;
-
-        return $type . ($description !== '' ? ($type !== '' ? ' ' : '') . $description : '');
-    }
 }
diff --git a/src/DocBlock/Tags/Return_.php b/src/DocBlock/Tags/Return_.php
index f130760..7e9b0c7 100644
--- a/src/DocBlock/Tags/Return_.php
+++ b/src/DocBlock/Tags/Return_.php
@@ -60,17 +60,4 @@ final class Return_ extends TagWithType implements Factory\StaticMethod
 
         return new static($type, $description);
     }
-
-    public function __toString(): string
-    {
-        if ($this->description) {
-            $description = $this->description->render();
-        } else {
-            $description = '';
-        }
-
-        $type = $this->type ? '' . $this->type : 'mixed';
-
-        return $type . ($description !== '' ? ' ' . $description : '');
-    }
 }
diff --git a/src/DocBlock/Tags/TagWithType.php b/src/DocBlock/Tags/TagWithType.php
index 271c41b..89e29e5 100644
--- a/src/DocBlock/Tags/TagWithType.php
+++ b/src/DocBlock/Tags/TagWithType.php
@@ -71,4 +71,17 @@ abstract class TagWithType extends BaseTag
 
         return [$type, $description];
     }
+
+    public function __toString(): string
+    {
+        if ($this->description) {
+            $description = $this->description->render();
+        } else {
+            $description = '';
+        }
+
+        $type = (string) $this->type;
+
+        return $type . ($description !== '' ? ($type !== '' ? ' ' : '') . $description : '');
+    }
 }
diff --git a/src/DocBlock/Tags/Throws.php b/src/DocBlock/Tags/Throws.php
index f21c910..e081846 100644
--- a/src/DocBlock/Tags/Throws.php
+++ b/src/DocBlock/Tags/Throws.php
@@ -48,17 +48,4 @@ final class Throws extends TagWithType implements Factory\StaticMethod
 
         return new static($type, $description);
     }
-
-    public function __toString(): string
-    {
-        if ($this->description) {
-            $description = $this->description->render();
-        } else {
-            $description = '';
-        }
-
-        $type = (string) $this->type;
-
-        return $type . ($description !== '' ? ($type !== '' ? ' ' : '') . $description : '');
-    }
 }