diff --git a/apps/sft/fpool.cpp b/apps/sft/fpool.cpp
index 2aa55c0b6b..76a4031cd0 100644
--- a/apps/sft/fpool.cpp
+++ b/apps/sft/fpool.cpp
@@ -76,7 +76,7 @@ void sft::write(cv::FileStorage& fs, const string&, const ICF& f)
 
 sft::ICFFeaturePool::~ICFFeaturePool(){}
 
-// #define USE_LONG_SEEDS
+#define USE_LONG_SEEDS
 #if defined USE_LONG_SEEDS
 # define FEATURE_RECT_SEED      8854342234LU
 #else
diff --git a/modules/ml/src/octave.cpp b/modules/ml/src/octave.cpp
index bb0108897f..a47d4319ff 100644
--- a/modules/ml/src/octave.cpp
+++ b/modules/ml/src/octave.cpp
@@ -239,7 +239,7 @@ void cv::Octave::processPositives(const Dataset* dataset, const FeaturePool* poo
     nnegatives = cvRound(nnegatives * total / (double)npositives);
 }
 
-// #define USE_LONG_SEEDS
+#define USE_LONG_SEEDS
 #if defined USE_LONG_SEEDS
 # define INDEX_ENGINE_SEED      764224349868LU
 #else