diff --git a/config.def.h b/config.def.h
index 167165b..9f61a2f 100644
--- a/config.def.h
+++ b/config.def.h
@@ -1,4 +1,4 @@
-#define FMT "%s=$%f"
+#define FMT "%s=$%.2f"
 
 // curl https://api.coingecko.com/api/v3/simple/supported_vs_currencies
 #define VS "usd"