diff --git a/client/X11/xf_monitor.c b/client/X11/xf_monitor.c
index 2e5ee31ca..c4a1e1ad9 100644
--- a/client/X11/xf_monitor.c
+++ b/client/X11/xf_monitor.c
@@ -56,6 +56,11 @@ boolean xf_detect_monitors(xfInfo* xfi, rdpSettings* settings)
 		settings->width = xfi->workArea.width;
 		settings->height = xfi->workArea.height;
 	}
+	else if (settings->percent_screen)
+	{
+		settings->width = (xfi->workArea.width * settings->percent_screen) / 100;
+		settings->height = (xfi->workArea.height * settings->percent_screen) / 100;
+	}
 
 	if (settings->fullscreen != True && settings->workarea != True)
 		return True;
diff --git a/include/freerdp/settings.h b/include/freerdp/settings.h
index 24f754328..4b7157270 100644
--- a/include/freerdp/settings.h
+++ b/include/freerdp/settings.h
@@ -186,6 +186,7 @@ struct rdp_settings
 
 	uint16 width;
 	uint16 height;
+	uint16 percent_screen;
 	boolean sw_gdi;
 	boolean workarea;
 	boolean fullscreen;
diff --git a/libfreerdp-utils/args.c b/libfreerdp-utils/args.c
index 8730cd0b5..e17265108 100644
--- a/libfreerdp-utils/args.c
+++ b/libfreerdp-utils/args.c
@@ -184,6 +184,15 @@ int freerdp_parse_args(rdpSettings* settings, int argc, char** argv,
 				{
 					settings->height = (uint16) strtol(p + 1, &p, 10);
 				}
+				if (*p == '%')
+				{
+					settings->percent_screen = settings->width;
+					if (settings->percent_screen <= 0 || settings->percent_screen > 100)
+					{
+						printf("invalid geometry percentage\n");
+						return -1;
+					}
+				}
 				else
 				{
 					if (ui_callback != NULL)