diff --git a/circuits/cpp/barretenberg/cpp/src/barretenberg/bb/main.cpp b/circuits/cpp/barretenberg/cpp/src/barretenberg/bb/main.cpp
index 1f2ae5c1654..35365ada13a 100644
--- a/circuits/cpp/barretenberg/cpp/src/barretenberg/bb/main.cpp
+++ b/circuits/cpp/barretenberg/cpp/src/barretenberg/bb/main.cpp
@@ -16,7 +16,7 @@ using namespace barretenberg;
 // based on memory constraints for UltraPlonk.
 // However, since this CLI does not use WASM, we can increase the
 // size.
-uint32_t MAX_CIRCUIT_SIZE = 1 << 23;
+uint32_t MAX_CIRCUIT_SIZE = 1 << 22;
 std::string CRS_PATH = "./crs";
 bool verbose = false;
 
@@ -333,4 +333,4 @@ int main(int argc, char* argv[])
         std::cerr << err.what() << std::endl;
         return 1;
     }
-}
\ No newline at end of file
+}