diff --git a/vlib/os/font/font.v b/vlib/os/font/font.v
index cd0345afee..b6090c6bc9 100644
--- a/vlib/os/font/font.v
+++ b/vlib/os/font/font.v
@@ -68,7 +68,7 @@ pub fn default() string {
 			}
 		}
 	}
-	mut fm := os.execute("fc-match --format='%{file}\n' -s")
+	mut fm := os.execute("fc-match --format='%\{file}\n' -s")
 	if fm.exit_code == 0 {
 		lines := fm.output.split('\n')
 		for l in lines {