diff --git a/lib/redmine/helpers/gantt.rb b/lib/redmine/helpers/gantt.rb
index 0e389f8fd..d73a92ec0 100644
--- a/lib/redmine/helpers/gantt.rb
+++ b/lib/redmine/helpers/gantt.rb
@@ -737,20 +737,20 @@ module Redmine
         height = options[:height] || 2
         # Renders the task bar, with progress and late
         if coords[:bar_start] && coords[:bar_end]
-          params[:pdf].SetY(params[:top]+1.5)
+          params[:pdf].SetY(params[:top] + 1.5)
           params[:pdf].SetX(params[:subject_width] + coords[:bar_start])
-          params[:pdf].SetFillColor(200,200,200)
+          params[:pdf].SetFillColor(200, 200, 200)
           params[:pdf].RDMCell(coords[:bar_end] - coords[:bar_start], height, "", 0, 0, "", 1)
           if coords[:bar_late_end]
-            params[:pdf].SetY(params[:top]+1.5)
+            params[:pdf].SetY(params[:top] + 1.5)
             params[:pdf].SetX(params[:subject_width] + coords[:bar_start])
-            params[:pdf].SetFillColor(255,100,100)
+            params[:pdf].SetFillColor(255, 100, 100)
             params[:pdf].RDMCell(coords[:bar_late_end] - coords[:bar_start], height, "", 0, 0, "", 1)
           end
           if coords[:bar_progress_end]
-            params[:pdf].SetY(params[:top]+1.5)
+            params[:pdf].SetY(params[:top] + 1.5)
             params[:pdf].SetX(params[:subject_width] + coords[:bar_start])
-            params[:pdf].SetFillColor(90,200,90)
+            params[:pdf].SetFillColor(90, 200, 90)
             params[:pdf].RDMCell(coords[:bar_progress_end] - coords[:bar_start], height, "", 0, 0, "", 1)
           end
         end
@@ -759,13 +759,13 @@ module Redmine
           if coords[:start]
             params[:pdf].SetY(params[:top] + 1)
             params[:pdf].SetX(params[:subject_width] + coords[:start] - 1)
-            params[:pdf].SetFillColor(50,50,200)
+            params[:pdf].SetFillColor(50, 50, 200)
             params[:pdf].RDMCell(2, 2, "", 0, 0, "", 1)
           end
           if coords[:end]
             params[:pdf].SetY(params[:top] + 1)
             params[:pdf].SetX(params[:subject_width] + coords[:end] - 1)
-            params[:pdf].SetFillColor(50,50,200)
+            params[:pdf].SetFillColor(50, 50, 200)
             params[:pdf].RDMCell(2, 2, "", 0, 0, "", 1)
           end
         end