diff --git a/src/graphics/buffers.c b/src/graphics/buffers.c
index bf7a250..42f57d8 100644
--- a/src/graphics/buffers.c
+++ b/src/graphics/buffers.c
@@ -365,9 +365,9 @@ static bool compute_space_3D (long x,
         }
     }
 
-    for (int u = 0; u < y; u ++){
-        for (int w = 0; w < z; w ++){
-            calcul = step_z * w + step_y * u;
+    for (int u = 0; u < z; u ++){
+        for (int w = 0; w < y; w ++){
+            calcul = step_y * w + step_z * u;
             *(lines_origin + lines_buffer_size) = calcul; lines_buffer_size += 1;
             *(lines_origin + lines_buffer_size) = calcul + step_x * (x - 1); lines_buffer_size += 1;
         }