diff --git a/repos/hello_gpgpu/src/hello_gpgpu/polybench.cc b/repos/hello_gpgpu/src/hello_gpgpu/polybench.cc
index 88b5c3833a..871e535ed3 100644
--- a/repos/hello_gpgpu/src/hello_gpgpu/polybench.cc
+++ b/repos/hello_gpgpu/src/hello_gpgpu/polybench.cc
@@ -371,7 +371,7 @@ void polybench_timer_print()
 # ifndef POLYBENCH_CYCLE_ACCURATE_TIMER
       printf ("%0.6f\n", polybench_t_end - polybench_t_start);
 # else
-      printf ("%Ld\n", polybench_c_end - polybench_c_start);
+      printf ("%ld\n", polybench_c_end - polybench_c_start);
 # endif
 #endif
 }