diff --git a/source/tart.c b/source/tart.c
index 4096580..f61d6e5 100644
--- a/source/tart.c
+++ b/source/tart.c
@@ -18,6 +18,10 @@ struct tart_window tart_create_window() {
         window.buffers[i] = tart_create_buffer(0, (struct tart_vec2){0,0},(struct tart_vec2){0,0});
     }
     window.size = term_current_size();
+    window.data = malloc((window.size.x * window.size.y * sizeof(char) * TART_CELL_DATA_SIZE)+ 100 );
+    for(int g = 0; g < (window.size.x * window.size.y * sizeof(char) * TART_CELL_DATA_SIZE)+ 100; g++) {
+        window.data[g] = '\0';
+    }
     return window;
 }
 
@@ -79,7 +83,6 @@ struct tart_cell tart_set_cell(struct tart_buffer* buffer, struct tart_cell cell
 tart_byte tart_draw_window(struct tart_window * window, char* rend_buffer) {
     int offset = 0;
     int i = 0;
-    window->data = malloc((window->size.x * window->size.y * sizeof(char) * TART_CELL_DATA_SIZE)+ 100 );
     for (int b = 0;b < 0xFF; b++) {
         if(window->buffers[b].cell_count == 0) 
             continue;
@@ -87,7 +90,7 @@ tart_byte tart_draw_window(struct tart_window * window, char* rend_buffer) {
             for (int x = 0; x < window->buffers[b].size.x; x++) {
                     // add data to window c buffer.
                     struct tart_cell cell = window->buffers[b].cells[(y*window->buffers[b].size.x) + x];
-                    char pre[16];
+                    char pre[20];
                     int size = sprintf(pre, "\033[%d;%d;%dm%c\033[0;0m", (int)cell.style, cell.foreground, cell.background, cell.display);
                     for(int preIdx = 0; preIdx < size; preIdx++) {
                         window->data[(y*window->buffers[b].size.x) + x + offset] = pre[preIdx];
@@ -104,7 +107,6 @@ tart_byte tart_draw_window(struct tart_window * window, char* rend_buffer) {
         }
     }
     fwrite(window->data, sizeof(char), (window->size.x * window->size.y * sizeof(char))+ 100 , stdout);
-    free(window->data);
     return TART_OK;
 };