diff --git a/apps/sft/fpool.cpp b/apps/sft/fpool.cpp
index 76a4031cd0..c241a75dfb 100644
--- a/apps/sft/fpool.cpp
+++ b/apps/sft/fpool.cpp
@@ -76,7 +76,17 @@ void sft::write(cv::FileStorage& fs, const string&, const ICF& f)
 
 sft::ICFFeaturePool::~ICFFeaturePool(){}
 
-#define USE_LONG_SEEDS
+#if defined _WIN32 && (_WIN32 || _WIN64)
+# if _WIN64
+#  define USE_LONG_SEEDS
+# endif
+#endif
+#if defined (__GNUC__) &&__GNUC__
+# if defined(__x86_64__) || defined(__ppc64__)
+#  define USE_LONG_SEEDS
+# endif
+#endif
+
 #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 b0358b6f2b..3a5de94879 100644
--- a/modules/ml/src/octave.cpp
+++ b/modules/ml/src/octave.cpp
@@ -239,7 +239,17 @@ void cv::Octave::processPositives(const Dataset* dataset, const FeaturePool* poo
     nnegatives = cvRound(nnegatives * total / (double)npositives);
 }
 
-#define USE_LONG_SEEDS
+#if defined _WIN32 && (_WIN32 || _WIN64)
+# if _WIN64
+#  define USE_LONG_SEEDS
+# endif
+#endif
+#if defined (__GNUC__) &&__GNUC__
+# if defined(__x86_64__) || defined(__ppc64__)
+#  define USE_LONG_SEEDS
+# endif
+#endif
+
 #if defined USE_LONG_SEEDS
 # define INDEX_ENGINE_SEED      764224349868LU
 #else