diff --git a/salt/wazuh/files/agent/wazuh-register-agent b/salt/wazuh/files/agent/wazuh-register-agent
index 3c5db61e9..21c3c2f05 100755
--- a/salt/wazuh/files/agent/wazuh-register-agent
+++ b/salt/wazuh/files/agent/wazuh-register-agent
@@ -60,7 +60,7 @@ register_agent() {
   GOT_KEY=$?
 
   if [[ -z "$AGENT_ID" || -z "$AGENT_KEY" || $GOT_ID -ne 0 || $GOT_KEY -ne 0 ]]; then
-    if echo $API_RESULT | jq -er .message | grep -q "There is an agent with the same name"; then
+    if echo "$API_RESULT" | jq -er .message | grep -q "There is an agent with the same name"; then
       echo "Agent $AGENT_NAME already registered!"
       touch /opt/so/conf/wazuh/initial_agent_registration.log
       exit 0