diff --git a/features/responsive-image-block.feature b/features/responsive-image-block.feature
index 01b4494..e73d01c 100644
--- a/features/responsive-image-block.feature
+++ b/features/responsive-image-block.feature
@@ -13,6 +13,20 @@ Feature: Jekyll responsive_image_block tag
     When I run Jekyll
     Then I should see "<img alt=\"Lorem ipsum\" src=\"/assets/everybody-loves-jalapeño-pineapple-cornbread.png\" title=\"Magic rainbow adventure!\"" in "_site/index.html"
 
+  Scenario: Tabs for indentation
+    Given I have a responsive_image configuration with "template" set to "_includes/responsive-image.html"
+    And I have a file "index.html" with:
+      """
+      {% assign path = 'assets/everybody-loves-jalapeño-pineapple-cornbread.png' %}
+      {% responsive_image_block %}
+      	path: {{ path }}
+      	title: Magic rainbow adventure!
+      	alt: Lorem ipsum
+      {% endresponsive_image_block %}
+      """
+    When I run Jekyll
+    Then I should see "<img alt=\"Lorem ipsum\" src=\"/assets/everybody-loves-jalapeño-pineapple-cornbread.png\" title=\"Magic rainbow adventure!\"" in "_site/index.html"
+
   Scenario: Global variables available in templates
     Given I have a file "index.html" with:
       """
diff --git a/lib/jekyll-responsive-image/block.rb b/lib/jekyll-responsive-image/block.rb
index c5d07ad..cb6ceb9 100644
--- a/lib/jekyll-responsive-image/block.rb
+++ b/lib/jekyll-responsive-image/block.rb
@@ -4,7 +4,13 @@ module Jekyll
       include Jekyll::ResponsiveImage::Utils
 
       def render(context)
-        attributes = YAML.load(super)
+        content = super
+
+        if content.include?("\t")
+          content = content.lines.map {|line| line.gsub(/\G[\t ]/, "  ")}.join("\n")
+        end
+
+        attributes = YAML.load(content)
         Renderer.new(context.registers[:site], attributes).render_responsive_image
       end
     end