diff --git a/modules/objdetect/src/cascadedetect.cpp b/modules/objdetect/src/cascadedetect.cpp
index 63edd0d8c5..5cc861e0f5 100644
--- a/modules/objdetect/src/cascadedetect.cpp
+++ b/modules/objdetect/src/cascadedetect.cpp
@@ -1402,8 +1402,10 @@ bool CascadeClassifierImpl::Data::read(const FileNode &root)
     else if( featureTypeStr == CC_LBP )
         featureType = FeatureEvaluator::LBP;
     else if( featureTypeStr == CC_HOG )
+    {
         featureType = FeatureEvaluator::HOG;
-
+        CV_Error(Error::StsNotImplemented, "HOG cascade is not supported in 3.0");
+    }
     else
         return false;