diff --git a/radio/src/storage/yaml/yaml_datastructs_x12s.cpp b/radio/src/storage/yaml/yaml_datastructs_x12s.cpp
index 824249a3c..222605562 100644
--- a/radio/src/storage/yaml/yaml_datastructs_x12s.cpp
+++ b/radio/src/storage/yaml/yaml_datastructs_x12s.cpp
@@ -424,7 +424,7 @@ static const struct YamlNode struct_ExpoData[] = {
   YAML_IDX,
   YAML_UNSIGNED( "mode", 2 ),
   YAML_UNSIGNED( "scale", 14 ),
-  YAML_ENUM("srcRaw", 10, enum_MixSources),
+  YAML_UNSIGNED_CUST( "srcRaw", 10, r_mixSrcRaw, w_mixSrcRaw ),
   YAML_SIGNED( "carryTrim", 6 ),
   YAML_UNSIGNED( "chn", 5 ),
   YAML_SIGNED_CUST( "swtch", 9, r_swtchSrc, w_swtchSrc ),