diff --git a/is_dark.gemspec b/is_dark.gemspec
index 86454cf..3f7f78e 100644
--- a/is_dark.gemspec
+++ b/is_dark.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |s|
   s.name        = 'is_dark'
-  s.version     = '0.2.0'
+  s.version     = '0.2.1'
   s.summary     = 'Detects a dark background under an area or by a color code'
   s.description = 'Detects a dark color based on luminance W3 standarts ' \
                   "( https://www.w3.org/TR/WCAG20/#relativeluminancedef ). \n\n " \
diff --git a/lib/is_dark.rb b/lib/is_dark.rb
index d701963..137d8ea 100644
--- a/lib/is_dark.rb
+++ b/lib/is_dark.rb
@@ -83,7 +83,7 @@ def magick_area_from_blob(x, y, blob, height, width)
     dots = []
     @matrix.each do |xx|
       @matrix.each do |yy|
-        dots << { x: (x + (width * xx / 10)).to_i, y: (y + (height * yy / 10)).to_i }
+        dots << { x: (x + (width * xx / @matrix.count)).to_i, y: (y + (height * yy / @matrix.count)).to_i }
       end
     end