diff --git a/lib/awful/widget/graph.lua.in b/lib/awful/widget/graph.lua.in
index a65647df0..1841a0cb2 100644
--- a/lib/awful/widget/graph.lua.in
+++ b/lib/awful/widget/graph.lua.in
@@ -112,9 +112,10 @@ local function update(graph)
             if value >= 0 then
                 value = value / max_value
                 img:draw_line(data[graph].width - border_width - i - 1,
-                              border_width + ((data[graph].height - 2 * border_width) * (1 - value)),
+                              border_width - 1 +
+                                  math.floor(((data[graph].height - 2 * border_width) * (1 - value)) + 0.5),
                               data[graph].width - border_width - i - 1,
-                              border_width,
+                              border_width - 1,
                               data[graph].background_color or "#000000aa")
             end
         end
diff --git a/lib/awful/widget/progressbar.lua.in b/lib/awful/widget/progressbar.lua.in
index c12e7b9d8..761e78623 100644
--- a/lib/awful/widget/progressbar.lua.in
+++ b/lib/awful/widget/progressbar.lua.in
@@ -98,7 +98,7 @@ local function update(pbar)
                            rel_height,
                            true, data[pbar].background_color or "#000000aa")
     else
-        local rel_x = math.floor(over_drawn_width * data[pbar].value)
+        local rel_x = math.floor((over_drawn_width * data[pbar].value) + 0.5)
         img:draw_rectangle(border_width + rel_x,
                            border_width,
                            over_drawn_width - rel_x,