Fix a typo in const variable name

Change-Id: I10a02f7aa19b4a4fb4e651ab1bfbb8b0faf0de43
diff --git a/src/client-module.cpp b/src/client-module.cpp
index a94b176..28e535b 100644
--- a/src/client-module.cpp
+++ b/src/client-module.cpp
@@ -203,7 +203,7 @@
 
   // update state
   m_status = contentJson.get<int>(JSON_CA_STATUS);
-  m_requestId = contentJson.get<std::string>(JSON_CA_EQUEST_ID, "");
+  m_requestId = contentJson.get<std::string>(JSON_CA_REQUEST_ID, "");
 
   auto challengesJson = contentJson.get_child(JSON_CA_CHALLENGES);
   m_challengeList.clear();