diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index dfcc61426..17558fc97 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -788,7 +788,7 @@ size_t estimate_rct_tx_size(int n_inputs, int mixin, int n_outputs, size_t extra
   // pseudoOuts
   size += 32 * n_inputs;
   // ecdhInfo
-  size += 2 * 32 * n_outputs;
+  size += 8 * n_outputs;
   // outPk - only commitment is saved
   size += 32 * n_outputs;
   // txnFee