diff --git a/src/cc/dapps/README.md b/src/cc/dapps/README.md
index 0d8b2cac2..d59878d47 100644
--- a/src/cc/dapps/README.md
+++ b/src/cc/dapps/README.md
@@ -12,7 +12,7 @@ This tool converts Sprout zaddress funds into Sapling funds in a new Sapling add
 
 ### Usage
 
-    ./zmigrate zsaplingaddr
+    ./zmigrate COIN zsaplingaddr
 
 The above command may need to be run multiple times to complete the process.