diff --git a/main/fart.cc b/main/fart.cc
index a660e79..386c2ab 100644
--- a/main/fart.cc
+++ b/main/fart.cc
@@ -273,6 +273,7 @@ int main(int argc, char * argv[])
                 {
                     double pct = 100.0 * pixel_num / (double) total_pixels;
                     printf("\e[8D%2.1f%%", pct);
+                    fflush(stdout);
                 }
             }
         }