diff --git a/src/DataReader/PatientDataReader.cpp b/src/DataReader/PatientDataReader.cpp
index 5199333..d453769 100644
--- a/src/DataReader/PatientDataReader.cpp
+++ b/src/DataReader/PatientDataReader.cpp
@@ -96,6 +96,11 @@ PatientData PatientDataReader::getPatientDataFromHJ(const std::string& aFilePath
     {
        return result;
     }
+
+    if(!jsonObj.at("Patient Info").is_string())
+    {
+        return result;
+    }
     patientJsonString = jsonObj.at("Patient Info").get<std::string>();
     patientJsonString = AESEncryptHelper::decrypt(patientJsonString); 
     if(patientJsonString.empty())