diff --git a/env.sh b/env.sh
index 38b1713..e2b39c9 100644
--- a/env.sh
+++ b/env.sh
@@ -2,4 +2,4 @@ conda activate tts
 
 unset OCL_ICD_VENDORS
 export SYCL_CACHE_PERSISTENT=1
-export SYCL_PI_LEVEL_ZERO_USE_IMMEDIATE_COMMANDLISTS=1
+export SYCL_PI_LEVEL_ZERO_USE_IMMEDIATE_COMMANDLISTS=0