From d9654b9dcbdba24856d9b0d4a4ea26a3cc11be51 Mon Sep 17 00:00:00 2001
From: Vanya Belyaev <ivan.belyaev@cern.ch>
Date: Mon, 5 Aug 2024 09:21:27 +0200
Subject: [PATCH]  fix?

---
 ostap/histos/histos.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ostap/histos/histos.py b/ostap/histos/histos.py
index ab9dce6b..5f408b1d 100755
--- a/ostap/histos/histos.py
+++ b/ostap/histos/histos.py
@@ -4307,7 +4307,7 @@ def _my_eff_ ( a , r , c ) :
         sumi += c 
         
     if h1.natural () :
-        nn = max ( 1 , math.ceil ( h1.Integral () ) ) 
+        nn = max ( 1 , int ( math.ceil ( float ( h1.Integral () ) ) ) ) 
         e0 = binomEff ( 0  , nn )
         e1 = binomEff ( nn , nn )
     else :