diff --git a/tools/hidpp10-dump-page.c b/tools/hidpp10-dump-page.c
index 3124da84..332fcf1d 100644
--- a/tools/hidpp10-dump-page.c
+++ b/tools/hidpp10-dump-page.c
@@ -71,7 +71,7 @@ dump_all_pages(struct hidpp10_device *dev)
 	return rc;
 }
 
-void
+static void
 usage(void)
 {
 	printf("Usage: %s [page] [offset] /dev/hidraw0\n", program_invocation_short_name);
diff --git a/tools/hidpp20-dump-page.c b/tools/hidpp20-dump-page.c
index 05ceb649..fddeda37 100644
--- a/tools/hidpp20-dump-page.c
+++ b/tools/hidpp20-dump-page.c
@@ -83,7 +83,7 @@ dump_everything(struct hidpp20_device *dev)
 	return dump_all_pages(dev, 1);
 }
 
-void
+static void
 usage(void)
 {
 	printf("Usage: %s [page] [offset] /dev/hidraw0\n", program_invocation_short_name);