diff --git a/Makefile b/Makefile
index 907b328626..880fcf3dfe 100644
--- a/Makefile
+++ b/Makefile
@@ -72,7 +72,7 @@ resources/local/chainspec.toml: generate-chainspec.sh resources/local/chainspec.
 
 .PHONY: test-rs
 test-rs: resources/local/chainspec.toml build-contracts-rs
-	$(LEGACY) $(DISABLE_LOGGING) $(CARGO) test --all-features --no-fail-fast $(CARGO_FLAGS) -- --nocapture
+	$(LEGACY) $(DISABLE_LOGGING) $(CARGO) test --all-features --no-fail-fast $(CARGO_FLAGS) -- charge_when_session_code_succeeds --nocapture
 
 .PHONY: resources/local/chainspec.toml
 test-rs-no-default-features:
diff --git a/node/src/reactor/main_reactor/tests/transactions.rs b/node/src/reactor/main_reactor/tests/transactions.rs
index 6f897deb2f..058e388281 100644
--- a/node/src/reactor/main_reactor/tests/transactions.rs
+++ b/node/src/reactor/main_reactor/tests/transactions.rs
@@ -850,7 +850,6 @@ async fn native_operations_fees_are_not_refunded() {
 
 #[tokio::test]
 async fn wasm_transaction_fees_are_refunded() {
-    std::env::set_var("CL_TEST_SEED", "84188df5d5f7a1e736c13623fb9721f6");
     let initial_stakes = InitialStakes::FromVec(vec![u128::MAX, 1]); // Node 0 is effectively guaranteed to be the proposer.
 
     let refund_ratio = Ratio::new(1, 2);