diff --git a/cpp/src/barretenberg/vm/aztec_constants.hpp b/cpp/src/barretenberg/vm/aztec_constants.hpp
index a02974500..24d696350 100644
--- a/cpp/src/barretenberg/vm/aztec_constants.hpp
+++ b/cpp/src/barretenberg/vm/aztec_constants.hpp
@@ -82,7 +82,7 @@
 #define START_EMIT_NULLIFIER_WRITE_OFFSET 208
 #define START_EMIT_L2_TO_L1_MSG_WRITE_OFFSET 224
 #define START_EMIT_UNENCRYPTED_LOG_WRITE_OFFSET 226
-#define MAX_L2_GAS_PER_TX_PUBLIC_PORTION 12000000
+#define MAX_L2_GAS_PER_TX_PUBLIC_PORTION 6000000
 #define AVM_POSEIDON2_BASE_L2_GAS 36
 #define AVM_ADD_BASE_L2_GAS 27
 #define AVM_SUB_BASE_L2_GAS 27