diff --git a/lib/report/image.rb b/lib/report/image.rb
index 05ac5b51c..6a09166cd 100644
--- a/lib/report/image.rb
+++ b/lib/report/image.rb
@@ -17,16 +17,16 @@ def size hash = nil
   end
 
   def obtain_png_file
-		blob = obtain_png_blob
+    blob = obtain_png_blob
 
-		file = Tempfile.new('image')
-		file.binmode
-		file.write blob
-		file.flush
-		file.close
+    file = Tempfile.new('image')
+    file.binmode
+    file.write blob
+    file.flush
+    file.close
 
-		return file.path
-	end
+    return file.path
+  end
 
   private
 
diff --git a/lib/report/report.rb b/lib/report/report.rb
index 9e44579e5..d46847152 100644
--- a/lib/report/report.rb
+++ b/lib/report/report.rb
@@ -1,65 +1,65 @@
 require 'tempfile'
 
 module Report
-	class Report
-		def initialize
-			@report_data = Array.new
-			@image = nil
-			@header = nil
+  class Report
+    def initialize
+      @report_data = Array.new
+      @image = nil
+      @header = nil
 
-			yield self
-		end
+      yield self
+    end
 
-		def header
-			header = Header.new
-			yield header
-			@header = header
-		end
+    def header
+      header = Header.new
+      yield header
+      @header = header
+    end
 
-		def add_title
-	    title = Title.new
-	    yield title
-	    add_to_report(title)
-	  end
+    def add_title
+    title = Title.new
+    yield title
+    add_to_report(title)
+    end
 
-	  def add_subtitle
-	    subtitle = Subtitle.new
-	    yield subtitle
-	    add_to_report(subtitle)
-	  end
+    def add_subtitle
+    subtitle = Subtitle.new
+    yield subtitle
+    add_to_report(subtitle)
+    end
 
-	  def add_paragraph
-	    paragraph = Paragraph.new
-	    yield paragraph
-	    add_to_report(paragraph)
-	  end
+    def add_paragraph
+    paragraph = Paragraph.new
+    yield paragraph
+    add_to_report(paragraph)
+    end
 
-	  def line_break
-	    nl = TextBlock.new
-	    add_to_report(nl)
-	  end
+    def line_break
+    nl = TextBlock.new
+    add_to_report(nl)
+    end
 
-		def add_table(dimension_x, dimension_y)
-			table = Table.new(dimension_x, dimension_y)
-			yield table
-			add_to_report(table)
-		end
+    def add_table(dimension_x, dimension_y)
+      table = Table.new(dimension_x, dimension_y)
+      yield table
+      add_to_report(table)
+    end
 
-	  def add_image
-	    if block_given?
-	      image = Image.new
-	      yield image
-	      add_to_report(image)
-	    end
-	  end
+    def add_image
+    if block_given?
+      image = Image.new
+      yield image
+      add_to_report(image)
+    end
+    end
 
-	  def generate_report
-	    raise 'Error: Function not implemented'
-	  end
+    def generate_report
+    raise 'Error: Function not implemented'
+    end
 
-	  private
-	    def add_to_report (data)
-	      @report_data.push(data)
-	    end
-	end
+    private
+    def add_to_report (data)
+      @report_data.push(data)
+    end
+  end
 end