diff --git a/main.c b/main.c
index 5ad37d4..3474e90 100644
--- a/main.c
+++ b/main.c
@@ -67,6 +67,7 @@ int main(void) {
         total_jiffies_active = current_total_jiffies_active;
         total_jiffies_idle = current_total_jiffies_idle;
 
+        out_file = freopen(OUT_FILE, "w", out_file);
         fseek(out_file, 0, SEEK_SET);
         fprintf(out_file, "%.02f", utilization * 100);
         fflush(out_file);