diff --git a/client/common/cmdline.c b/client/common/cmdline.c
index 4fcac49ef..0ab7f324f 100644
--- a/client/common/cmdline.c
+++ b/client/common/cmdline.c
@@ -42,7 +42,7 @@
 #include <freerdp/log.h>
 #define TAG CLIENT_TAG("common.cmdline")
 
-COMMAND_LINE_ARGUMENT_A args[] =
+static COMMAND_LINE_ARGUMENT_A args[] =
 {
 	{ "v", COMMAND_LINE_VALUE_REQUIRED, "<server>[:port]", NULL, NULL, -1, NULL, "Server hostname" },
 	{ "port", COMMAND_LINE_VALUE_REQUIRED, "<number>", NULL, NULL, -1, NULL, "Server port" },
diff --git a/winpr/tools/makecert/makecert.c b/winpr/tools/makecert/makecert.c
index 79de3f486..f4f4858bd 100644
--- a/winpr/tools/makecert/makecert.c
+++ b/winpr/tools/makecert/makecert.c
@@ -61,7 +61,7 @@ struct _MAKECERT_CONTEXT
 	int duration_months;
 };
 
-COMMAND_LINE_ARGUMENT_A args[] =
+static COMMAND_LINE_ARGUMENT_A args[] =
 {
 	/* Custom Options */