diff --git a/astra-sim-alibabacloud/build.sh b/astra-sim-alibabacloud/build.sh
index 5007f353..75fb2243 100755
--- a/astra-sim-alibabacloud/build.sh
+++ b/astra-sim-alibabacloud/build.sh
@@ -3,7 +3,7 @@ SCRIPT_DIR=$(dirname "$(realpath $0)")
 NS3_BUILD_DIR="${SCRIPT_DIR:?}"/build/astra_ns3
 SIMAI_PHY_BUILD_DIR="${SCRIPT_DIR:?}"/build/simai_phy
 SIMAI_ANALYTICAL_BUILD_DIR="${SCRIPT_DIR:?}"/build/simai_analytical
-SIM_LOG_DIR=/etc/astra-sim
+SIM_LOG_DIR="${SCRIPT_DIR:?}"/log
 
 # Functions
 function cleanup_build {
@@ -71,4 +71,4 @@ case "$1" in
     printf -- "-c|--compile mode supported ns3/phy/analytical  (example:./build.sh -c ns3)\n"
     printf -- "-l|--clean  (example:./build.sh -l ns3)\n"
     printf -- "-lr|--clean-result mode  (example:./build.sh -lr ns3)\n"
-esac
\ No newline at end of file
+esac
diff --git a/astra-sim-alibabacloud/build/astra_ns3/build.sh b/astra-sim-alibabacloud/build/astra_ns3/build.sh
index a8013812..21482e68 100755
--- a/astra-sim-alibabacloud/build/astra_ns3/build.sh
+++ b/astra-sim-alibabacloud/build/astra_ns3/build.sh
@@ -10,7 +10,7 @@ ASTRA_SIM_DIR="${SCRIPT_DIR:?}"/../../astra-sim
 INPUT_DIR="${SCRIPT_DIR:?}"/../../inputs
 NS3_DIR="${SCRIPT_DIR:?}"/../../extern/network_backend/ns3-interface
 NS3_APPLICATION="${NS3_DIR:?}"/simulation/src/applications/
-SIM_LOG_DIR=/etc/astra-sim
+SIM_LOG_DIR="${SCRIPT_DIR:?}"/log
 BUILD_DIR="${SCRIPT_DIR:?}"/build/
 RESULT_DIR="${SCRIPT_DIR:?}"/result/
 BINARY="${BUILD_DIR}"/gem5.opt
@@ -91,4 +91,4 @@ case "$1" in
     compile;;
 -h|--help|*)
     printf "Prints help message";;
-esac
\ No newline at end of file
+esac