diff --git a/main.cpp b/main.cpp
index 67a7934..f89130b 100644
--- a/main.cpp
+++ b/main.cpp
@@ -171,7 +171,7 @@ int main(int argc, char *argv[]) {
     GpuMetricsHeader_t gpu_mtr_rev;
     for (uint8_t c = 0; c < 10; c++) {
         gpu_hwmon = "/sys/class/drm/card" + std::to_string(c) + "/device";
-        gpu_mtr_rev = getGpuMetricsRev(gpu_hwmon + "/gpu_metrics");
+        gpu_mtr_rev = getGpuMetricsHeader(gpu_hwmon + "/gpu_metrics");
         if (gpu_mtr_rev.structure_size > 0)
             break;
     }