diff --git a/src/freedreno/perfcntrs/fdperf.c b/src/freedreno/perfcntrs/fdperf.c
index 3c3b9912b3f..3eb2f827a8d 100644
--- a/src/freedreno/perfcntrs/fdperf.c
+++ b/src/freedreno/perfcntrs/fdperf.c
@@ -28,6 +28,7 @@
 #include <err.h>
 #include <fcntl.h>
 #include <ftw.h>
+#include <locale.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -1085,6 +1086,8 @@ main(int argc, char **argv)
 
 	dev.groups = calloc(dev.ngroups, sizeof(struct counter_group));
 
+	setlocale(LC_NUMERIC, "en_US.UTF-8");
+
 	setup_counter_groups(groups);
 	restore_counter_groups();
 	config_restore();