diff --git a/README.md b/README.md
index 96cf7c3..6557074 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,12 @@ If you need to rebuild SRS from the bundled source:
 ./scripts/build_srs.sh
 ```
 
+SRS is built out-of-tree into:
+
+```text
+build/srs/objs/srs
+```
+
 ## Package
 
 ```bash
diff --git a/scripts/build_srs.sh b/scripts/build_srs.sh
index 2732aeb..9086b49 100755
--- a/scripts/build_srs.sh
+++ b/scripts/build_srs.sh
@@ -3,18 +3,21 @@ set -euo pipefail
 
 ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 SRS_SOURCE_DIR="${SRS_SOURCE_DIR:-${1:-$ROOT_DIR/external/srs-server-5.0-r3/trunk}}"
+SRS_BUILD_DIR="${SRS_BUILD_DIR:-$ROOT_DIR/build/srs}"
 
 if [[ ! -x "$SRS_SOURCE_DIR/configure" ]]; then
     echo "SRS source not found: $SRS_SOURCE_DIR" >&2
     exit 1
 fi
 
+mkdir -p "$SRS_BUILD_DIR"
+SRS_OUTPUT_DIR="$(realpath --relative-to="$SRS_SOURCE_DIR" "$SRS_BUILD_DIR")"
 cd "$SRS_SOURCE_DIR"
 
-if [[ ! -f objs/Makefile ]]; then
-    ./configure --prefix=/opt/vehicle-video-service/srs
+if [[ ! -f "$SRS_BUILD_DIR/Makefile" ]]; then
+    SRS_OUTPUT="$SRS_OUTPUT_DIR" ./configure --prefix=/opt/vehicle-video-service/srs
 fi
 
-make -j"$(nproc 2>/dev/null || echo 4)" srs
+make -f "$SRS_OUTPUT_DIR/Makefile" -j"$(nproc 2>/dev/null || echo 4)"
 
-echo "Built $SRS_SOURCE_DIR/objs/srs"
+echo "Built $SRS_BUILD_DIR/objs/srs"
diff --git a/scripts/package_release.sh b/scripts/package_release.sh
index 492d234..6f03a89 100755
--- a/scripts/package_release.sh
+++ b/scripts/package_release.sh
@@ -14,6 +14,7 @@ fi
 find_srs_bin() {
     local candidates=(
         "${SRS_BIN:-}"
+        "$ROOT_DIR/build/srs/objs/srs"
         "$ROOT_DIR/external/srs-server-5.0-r3/trunk/objs/srs"
         "/home/aiec/srs-server-5.0-r3/trunk/objs/srs"
         "/home/aiec/srs/bin/srs"