diff --git a/backend/python/fish-speech/Makefile b/backend/python/fish-speech/Makefile
index e5036de89ab5..d855239de83e 100644
--- a/backend/python/fish-speech/Makefile
+++ b/backend/python/fish-speech/Makefile
@@ -1,10 +1,13 @@
-.PHONY: fish-speech test-source-preparation
-fish-speech: test-source-preparation
+.PHONY: fish-speech test-source-preparation test-runtime-import
+fish-speech: test-source-preparation test-runtime-import
 	bash install.sh
 
 test-source-preparation:
 	bash prepare-source_test.sh
 
+test-runtime-import:
+	bash run_test.sh
+
 .PHONY: run
 run: fish-speech
 	@echo "Running fish-speech..."
diff --git a/backend/python/fish-speech/run.sh b/backend/python/fish-speech/run.sh
index eae121f37b0b..2c0daf8e962a 100644
--- a/backend/python/fish-speech/run.sh
+++ b/backend/python/fish-speech/run.sh
@@ -1,9 +1,11 @@
 #!/bin/bash
-backend_dir=$(dirname $0)
+backend_dir=$(dirname "$(realpath "$0")")
 if [ -d $backend_dir/common ]; then
     source $backend_dir/common/libbackend.sh
 else
     source $backend_dir/../common/libbackend.sh
 fi
 
+export PYTHONPATH="${backend_dir}/fish-speech-src${PYTHONPATH:+:${PYTHONPATH}}"
+
 startBackend $@
diff --git a/backend/python/fish-speech/run_test.sh b/backend/python/fish-speech/run_test.sh
new file mode 100644
index 000000000000..bd45f063591c
--- /dev/null
+++ b/backend/python/fish-speech/run_test.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+set -euo pipefail
+
+SCRIPT_DIR=$(dirname "$(realpath "$0")")
+WORK_DIR=$(mktemp -d)
+trap 'rm -rf "$WORK_DIR"' EXIT
+
+mkdir -p "$WORK_DIR/runtime/common" "$WORK_DIR/runtime/fish-speech-src/fish_speech"
+cp "$SCRIPT_DIR/run.sh" "$WORK_DIR/runtime/run.sh"
+
+cat > "$WORK_DIR/runtime/fish-speech-src/fish_speech/inference_engine.py" <<'PY'
+IMPORT_OK = True
+PY
+
+cat > "$WORK_DIR/runtime/common/libbackend.sh" <<'SH'
+startBackend() {
+    python3 -c 'from fish_speech.inference_engine import IMPORT_OK; assert IMPORT_OK'
+}
+SH
+
+bash "$WORK_DIR/runtime/run.sh"
+
+echo "PASS: runtime launcher imports relocated fish-speech source"