diff --git a/protocol-designer/src/components/StepEditForm/forms/MoveLiquid/SourceDestFields.js b/protocol-designer/src/components/StepEditForm/forms/MoveLiquid/SourceDestFields.js
index 0a30d83facfe..67f5eeb9259f 100644
--- a/protocol-designer/src/components/StepEditForm/forms/MoveLiquid/SourceDestFields.js
+++ b/protocol-designer/src/components/StepEditForm/forms/MoveLiquid/SourceDestFields.js
@@ -29,6 +29,24 @@ function SourceDestFields (props: Props) {
const {className, focusHandlers, prefix} = props
const addFieldNamePrefix = makeAddFieldNamePrefix(prefix)
+ const mixFields = (
+