diff --git a/conf/arb1/dexorder-arb1.toml b/conf/arb1/dexorder-arb1.toml
index ea74119..11833a3 100644
--- a/conf/arb1/dexorder-arb1.toml
+++ b/conf/arb1/dexorder-arb1.toml
@@ -17,4 +17,4 @@ quotecoins = [
     '0x82aF49447D8a07e3bd95BD0d56f35241523fBab1', # WETH
 ]
 
-nativecoin = ['0x82aF49447D8a07e3bd95BD0d56f35241523fBab1'] # WETH
+nativecoin = '0x82aF49447D8a07e3bd95BD0d56f35241523fBab1' # WETH