diff --git a/BP_analysis.cpp b/BP_analysis.cpp
index ff69428..b98110e 100644
--- a/BP_analysis.cpp
+++ b/BP_analysis.cpp
@@ -30,7 +30,7 @@ int main(int argc, char* argv[]) {
   string module_str = argv[1];
   string data_loc = argv[2];
 
-  int createHistos = 1;
+  int createHistos = 0;
   int createPerStepHistos = 0;
 
   jungfrauFile *thisfile = new jungfrauFile();
@@ -173,6 +173,8 @@ int main(int argc, char* argv[]) {
     } else {
       cout << "WARNING unexpected number of frames" << endl;
       cout << "WARNING code expected 21999/22000 frames" << endl;
+      cout << "exiting to make sure you notice" << endl;
+      exit(1);
     }
     
     int framecounter = 0;