diff --git a/src_features/signTx/logic_signTx.c b/src_features/signTx/logic_signTx.c
index c3074db..7d8cd37 100644
--- a/src_features/signTx/logic_signTx.c
+++ b/src_features/signTx/logic_signTx.c
@@ -136,6 +136,7 @@ customStatus_e customProcessor(txContext_t *context) {
                 }
                 dataContext.tokenContext.fieldIndex++;
                 dataContext.tokenContext.fieldOffset = 0;
+                memset(dataContext.tokenContext.data, 0, sizeof(dataContext.tokenContext.data));
                 return CUSTOM_HANDLED;
             }