diff --git a/src/SingleShotAO.cpp b/src/SingleShotAO.cpp
index d02281cdd56452f95371c2b767f61ef0d4ad10fd..f00de3a7fad1a11ff2b43bb004b719bbd693ed9e 100755
--- a/src/SingleShotAO.cpp
+++ b/src/SingleShotAO.cpp
@@ -796,7 +796,7 @@ void SingleShotAO::get_device_property()
 
 	//- <BoardType> -----------------------
 	// Case 1 (error): boardType is set to the default value in the database
-	if (boardType == boardType_default)
+	if (boardType == boardType_default || boardType == "")
 	{
 		errorMessages << "Device property <BoardType> is not set (default value " << boardType_default << " needs to be replaced)" << endl;
 		critical_properties_missing = true;