diff --git a/docker-exec-via-sock.sh b/docker-exec-via-sock.sh
index a224829..833d124 100644
--- a/docker-exec-via-sock.sh
+++ b/docker-exec-via-sock.sh
@@ -37,6 +37,7 @@ DOCKER_SOCKET="/var/run/docker.sock"
 DOCKER_API_VERSION="v1.51"
 CONTAINER_NAME=""
 CMD_TO_EXEC=""
+DOCKER_LAST_RESPONSE=""
 
 require_command() {
   if ! command -v "$1" >/dev/null 2>&1; then
@@ -62,7 +63,6 @@ docker_exec_create() {
     Cmd: ["sh", "-c", $cmd]
   }')
 
-  DOCKER_LAST_RESPONSE=""
   DOCKER_LAST_RESPONSE=$(curl --fail --silent --show-error --unix-socket "$DOCKER_SOCKET" \
     -X POST \
     -H "Content-Type: application/json" \
@@ -84,7 +84,6 @@ docker_exec_start() {
   docker_exec_start_id=$1
   docker_exec_start_desc=$2
   docker_exec_start_endpoint="${docker_api_base}/exec/${docker_exec_start_id}/start"
-  DOCKER_LAST_RESPONSE=""
   DOCKER_LAST_RESPONSE=$(curl --fail --show-error --silent --unix-socket "$DOCKER_SOCKET" \
     -X POST \
     -H "Content-Type: application/json" \
@@ -99,7 +98,6 @@ docker_exec_start() {
 docker_exec_exit_code() {
   docker_exec_exit_id=$1
   docker_exec_inspect_endpoint="${docker_api_base}/exec/${docker_exec_exit_id}/json"
-  DOCKER_LAST_RESPONSE=""
   DOCKER_LAST_RESPONSE=$(curl --fail --silent --show-error --unix-socket "$DOCKER_SOCKET" "$docker_exec_inspect_endpoint")
   docker_exec_exit_code_value=$(printf '%s' "$DOCKER_LAST_RESPONSE" | jq -r '.ExitCode // empty')