diff --git a/src/update.cpp b/src/update.cpp
index eebebb91be..a8a698a7f3 100644
--- a/src/update.cpp
+++ b/src/update.cpp
@@ -323,7 +323,12 @@ void Update::create_integrate(int narg, char **arg, int trysuffix)
   delete integrate;
 
   int sflag;
-  new_integrate(arg[0],narg-1,&arg[1],trysuffix,sflag);
+
+  if(narg-1 > 0) {
+    new_integrate(arg[0],narg-1,&arg[1],trysuffix,sflag);
+  } else {
+    new_integrate(arg[0],0,nullptr,trysuffix,sflag);
+  }
 
   std::string estyle = arg[0];
   if (sflag) {