diff --git a/src/Actions/WriteRelationship.php b/src/Actions/WriteRelationship.php
index dbe9e95..d6a54f0 100644
--- a/src/Actions/WriteRelationship.php
+++ b/src/Actions/WriteRelationship.php
@@ -32,8 +32,8 @@ public function __invoke(array $relation, string $indent = '', bool $jsonOutput
             $relatedModel = $this->getClassName($relation['related']);
 
             $relationType = match ($relation['type']) {
-                'BelongsToMany', 'HasMany', 'HasManyThrough', 'MorphToMany', 'MorphMany', 'MorphedByMany' => $plurals === true ? Str::plural($relatedModel) : (Str::singular($relatedModel) . '[]'),
-                'BelongsTo', 'HasOne', 'HasOneThrough', 'MorphOne', 'MorphTo' => Str::singular($relatedModel),
+                'BelongsToMany', 'HasMany', 'HasManyThrough', 'MorphToMany', 'MorphMany', 'MorphedByMany' => $plurals === true ? Str::plural($relatedModel) : ($relatedModel . '[]'),
+                'BelongsTo', 'HasOne', 'HasOneThrough', 'MorphOne', 'MorphTo' => $relatedModel,
                 default => $relatedModel,
             };
         }
diff --git a/test/Tests/Feature/Actions/WriteRelationshipTest.php b/test/Tests/Feature/Actions/WriteRelationshipTest.php
index 50f702f..befde2e 100644
--- a/test/Tests/Feature/Actions/WriteRelationshipTest.php
+++ b/test/Tests/Feature/Actions/WriteRelationshipTest.php
@@ -176,6 +176,33 @@ public function test_action_can_return_nullable_plural_relationships()
         $this->assertStringContainsString('tags: Tag[] | null', $result);
     }
 
+    public function test_plural_class_name_is_not_singularized_in_array_relation(): void
+    {
+        $relation = [
+            'name' => 'customer_tests',
+            'type' => 'HasMany',
+            'related' => 'App\Models\CustomerTests',
+        ];
+
+        $result = app(WriteRelationship::class)($relation);
+
+        $this->assertStringContainsString('customer_tests: CustomerTests[]', $result);
+        $this->assertStringNotContainsString('CustomerTest[]', $result);
+    }
+
+    public function test_plural_class_name_is_not_singularized_in_singular_relation(): void
+    {
+        $relation = [
+            'name' => 'primary_address',
+            'type' => 'BelongsTo',
+            'related' => 'App\Models\UserAddresses',
+        ];
+
+        $result = app(WriteRelationship::class)($relation);
+
+        $this->assertStringContainsString('primary_address: UserAddresses', $result);
+    }
+
     public function test_action_can_return_morph_to_union_type_relationships()
     {
         $morphToRelation = [