diff --git a/src/gui/views/gcal-month-view-row.c b/src/gui/views/gcal-month-view-row.c
index 20f90591438679c6662884f65ac74e411dd6a918..99b66de9cd7b3351d559a0de3ee0c827b5e7fb02 100644
--- a/src/gui/views/gcal-month-view-row.c
+++ b/src/gui/views/gcal-month-view-row.c
@@ -170,7 +170,7 @@ prepare_layout_blocks (GcalMonthViewRow *self,
   gboolean cell_will_overflow[7] = { FALSE, };
   guint available_height_without_overflow[7] = { 0, };
   guint available_height_with_overflow[7] = { 0, };
-  guint weekday_heights[7] = { 0, };
+  guint used_heights[7] = { 0, };
   guint n_events;
 
   n_events = g_list_model_get_n_items (G_LIST_MODEL (self->events));
@@ -217,8 +217,8 @@ prepare_layout_blocks (GcalMonthViewRow *self,
               guint cell = block->cell + j;
 
               g_ptr_array_add (blocks_per_day[cell], block);
-              weekday_heights[cell] += block->height;
-              cell_will_overflow[cell] |= weekday_heights[cell] > available_height_without_overflow[cell];
+              used_heights[cell] += block->height;
+              cell_will_overflow[cell] |= used_heights[cell] > available_height_without_overflow[cell] + 1;
             }
         }
     }