diff --git a/src/contract/deployooor/src/client/deploy_v1.rs b/src/contract/deployooor/src/client/deploy_v1.rs
index acb9b6a8f..b8536cb78 100644
--- a/src/contract/deployooor/src/client/deploy_v1.rs
+++ b/src/contract/deployooor/src/client/deploy_v1.rs
@@ -16,9 +16,11 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-use darkfi::Result;
+use darkfi::{ClientFailed, Result};
 use darkfi_sdk::{crypto::Keypair, deploy::DeployParamsV1};
-use log::debug;
+use log::{debug, error};
+
+use crate::error::DeployError;
 
 pub struct DeployCallDebris {
     pub params: DeployParamsV1,
@@ -36,8 +38,11 @@ pub struct DeployCallBuilder {
 
 impl DeployCallBuilder {
     pub fn build(&self) -> Result<DeployCallDebris> {
-        debug!("Building Deployooor::DeployV1 contract call");
-        assert!(!self.wasm_bincode.is_empty());
+        debug!(target: "contract::deployooor::client::deploy", "Building Deployooor::DeployV1 contract call");
+        if self.wasm_bincode.is_empty() {
+            error!(target: "contract::deployooor::client::deploy", "Provided WASM bincode is empty");
+            return Err(ClientFailed::VerifyError(DeployError::WasmBincodeInvalid.to_string()).into())
+        }
 
         let params = DeployParamsV1 {
             wasm_bincode: self.wasm_bincode.clone(),
diff --git a/src/contract/deployooor/src/client/lock_v1.rs b/src/contract/deployooor/src/client/lock_v1.rs
index e6bffaf56..4d55b7b9e 100644
--- a/src/contract/deployooor/src/client/lock_v1.rs
+++ b/src/contract/deployooor/src/client/lock_v1.rs
@@ -34,7 +34,7 @@ pub struct LockCallBuilder {
 
 impl LockCallBuilder {
     pub fn build(&self) -> Result<LockCallDebris> {
-        debug!("Building Deployooor::LockV1 contract call");
+        debug!(target: "contract::deployooor::client::lock", "Building Deployooor::LockV1 contract call");
 
         let params = LockParamsV1 { public_key: self.deploy_keypair.public };
         let debris = LockCallDebris { params };