diff --git a/interop/Dockerfile b/interop/Dockerfile
index 324a6d30..8fbafd80 100644
--- a/interop/Dockerfile
+++ b/interop/Dockerfile
@@ -13,7 +13,7 @@ ARG CACHEBUST=1
 
 RUN git clone https://github.com/lucas-clemente/quic-go && \
   cd quic-go && \
-  git checkout interop && \
+  git fetch origin interop && git checkout -t origin/interop && \
   go get ./...
 
 WORKDIR /quic-go
diff --git a/interop/run_endpoint.sh b/interop/run_endpoint.sh
index f25f9c17..acc3ac5f 100644
--- a/interop/run_endpoint.sh
+++ b/interop/run_endpoint.sh
@@ -10,8 +10,8 @@ if [ "$ROLE" == "client" ]; then
     echo "Starting QUIC client..."
     echo "Client params: $CLIENT_PARAMS"
     echo "Test case: $TESTCASE"
-    ./client $CLIENT_PARAMS $REQUESTS
+    QUIC_GO_LOG_LEVEL=debug ./client $CLIENT_PARAMS $REQUESTS
 else
     echo "Running QUIC server."
-    ./server "$@"
+    QUIC_GO_LOG_LEVEL=debug ./server "$@"
 fi