diff --git a/Plague.g1a b/Plague.g1a
index ea62317..4b30fe9 100644
Binary files a/Plague.g1a and b/Plague.g1a differ
diff --git a/src/epidemic_engine.c b/src/epidemic_engine.c
index 26f8ad4..a2d6417 100644
--- a/src/epidemic_engine.c
+++ b/src/epidemic_engine.c
@@ -1,4 +1,5 @@
 #include <gint/std/stdlib.h>
+#include <math.h>
 
 #include "epidemic_engine.h"
 
@@ -40,7 +41,7 @@ void epidemic_simulation(struct game *current_game)
     uint8_t *current_grid = calloc(current_game->grid.width * current_game->grid.height, sizeof(uint8_t));
     init_tab(current_game->grid.width * current_game->grid.height, current_grid, current_game->grid.data);
 
-    int healed_rate =  100 * (current_game->research / current_game->limit);
+    int healed_rate =  ceil(100 * (current_game->research / current_game->limit));
 
     // Make the epidemic grid evolove
     for (int i = 0; i < current_game->grid.width; i ++)