diff --git a/CHANGELOG.md b/CHANGELOG.md
index bbb1b70..1e3e8ea 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to `laravel-sluggable` will be documented in this file
 
+## 2.1.8 - 2019-04-21
+
+- ensure slugs are still unique when soft deletes are in use on model
+
 ## 2.1.7 - 2019-02-26 ❤️
 
 - Add support for Laravel 5.8
diff --git a/src/HasSlug.php b/src/HasSlug.php
index 26e1954..fa8a0ca 100644
--- a/src/HasSlug.php
+++ b/src/HasSlug.php
@@ -122,10 +122,24 @@ protected function otherRecordExistsWithSlug(string $slug): bool
             $key = $key ?? '0';
         }
 
-        return static::where($this->slugOptions->slugField, $slug)
+        $query = static::where($this->slugOptions->slugField, $slug)
             ->where($this->getKeyName(), '!=', $key)
-            ->withoutGlobalScopes()
-            ->exists();
+            ->withoutGlobalScopes();
+
+        if ($this->usesSoftDeletes()) {
+            $query->withTrashed();
+        }
+
+        return $query->exists();
+    }
+
+    protected function usesSoftDeletes()
+    {
+        if (in_array('Illuminate\Database\Eloquent\SoftDeletes', class_uses($this))) {
+            return true;
+        }
+
+        return false;
     }
 
     protected function ensureValidSlugOptions()
diff --git a/tests/Integration/HasSlugTest.php b/tests/Integration/HasSlugTest.php
index 4e31a87..3b0c8b0 100644
--- a/tests/Integration/HasSlugTest.php
+++ b/tests/Integration/HasSlugTest.php
@@ -280,4 +280,15 @@ public function getSlugOptions(): SlugOptions
         $model->save();
         $this->assertEquals('guete-nacht', $model->url);
     }
+
+    /** @test */
+    public function it_will_save_a_unique_slug_by_default_even_when_soft_deletes_are_on()
+    {
+        TestModelSoftDeletes::create(['name' => 'this is a test', 'deleted_at' => date('Y-m-d h:i:s')]);
+
+        foreach (range(1, 10) as $i) {
+            $model = TestModelSoftDeletes::create(['name' => 'this is a test']);
+            $this->assertEquals("this-is-a-test-{$i}", $model->url);
+        }
+    }
 }
diff --git a/tests/Integration/TestCase.php b/tests/Integration/TestCase.php
index 9b57cf9..eb42fa7 100644
--- a/tests/Integration/TestCase.php
+++ b/tests/Integration/TestCase.php
@@ -47,6 +47,14 @@ protected function setUpDatabase(Application $app)
             $table->string('other_field')->nullable();
             $table->string('url')->nullable();
         });
+
+        $app['db']->connection()->getSchemaBuilder()->create('test_model_soft_deletes', function (Blueprint $table) {
+            $table->increments('id');
+            $table->string('name')->nullable();
+            $table->string('other_field')->nullable();
+            $table->string('url')->nullable();
+            $table->softDeletes();
+        });
     }
 
     protected function initializeDirectory(string $directory)
diff --git a/tests/Integration/TestModelSoftDeletes.php b/tests/Integration/TestModelSoftDeletes.php
new file mode 100644
index 0000000..9073845
--- /dev/null
+++ b/tests/Integration/TestModelSoftDeletes.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Spatie\Sluggable\Test\Integration;
+
+use Spatie\Sluggable\HasSlug;
+use Spatie\Sluggable\SlugOptions;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class TestModelSoftDeletes extends Model
+{
+    use SoftDeletes,
+        HasSlug;
+
+    protected $table = 'test_model_soft_deletes';
+
+    protected $guarded = [];
+
+    public $timestamps = false;
+
+    /**
+     * Get the options for generating the slug.
+     */
+    public function getSlugOptions() : SlugOptions
+    {
+        return $this->slugOptions ?? $this->getDefaultSlugOptions();
+    }
+
+    /**
+     * Set the options for generating the slug.
+     */
+    public function setSlugOptions(SlugOptions $slugOptions) : self
+    {
+        $this->slugOptions = $slugOptions;
+
+        return $this;
+    }
+
+    /**
+     * Get the default slug options used in the tests.
+     */
+    public function getDefaultSlugOptions() : SlugOptions
+    {
+        return SlugOptions::create()
+            ->generateSlugsFrom('name')
+            ->saveSlugsTo('url');
+    }
+}