diff --git a/.gitignore b/.gitignore
index e5ff0430c0..dbf89bb41f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 *.pyc
 .DS_Store
 refman.rst
+OpenCV4Tegra/
diff --git a/modules/objdetect/src/cascadedetect.hpp b/modules/objdetect/src/cascadedetect.hpp
index 7e6a346737..ec208c1ba6 100644
--- a/modules/objdetect/src/cascadedetect.hpp
+++ b/modules/objdetect/src/cascadedetect.hpp
@@ -444,7 +444,7 @@ inline int predictCategoricalStump( CascadeClassifier& cascade, Ptr<FeatureEvalu
     CascadeClassifier::Data::Stage* cascadeStages = &cascade.data.stages[0];
 
 #ifdef HAVE_TEGRA_OPTIMIZATION
-    float tmp; // float accumulator -- float operations are quicker
+    float tmp = 0; // float accumulator -- float operations are quicker
 #endif
     for( int si = 0; si < nstages; si++ )
     {