diff --git a/run_agent.sh b/run_agent.sh
old mode 100644
new mode 100755
index c622ac1..da7fade
--- a/run_agent.sh
+++ b/run_agent.sh
@@ -17,7 +17,7 @@ fi
 
 if command -v screen >/dev/null 2>&1; then
     echo "Starting in screen session."
-    screen actsim-cluster-agent -j$(nproc)
+    screen bash -c 'source configure_environment.sh; actsim-cluster-agent -j$(nproc);'
 else
     echo "screen command not found. Starting in foreground."
     actsim-cluster-agent -j$(nproc)