diff --git a/src/USER-MISC/temper_grem.cpp b/src/USER-MISC/temper_grem.cpp
index 692f78cf9f..0dde34619a 100644
--- a/src/USER-MISC/temper_grem.cpp
+++ b/src/USER-MISC/temper_grem.cpp
@@ -241,7 +241,14 @@ void TemperGrem::command(int narg, char **arg)
 
     timer->init_timeout();
     update->integrate->run(nevery);
-    if (timer->is_timeout()) break;
+
+    // check for timeout across all procs
+
+    int my_timeout=0;
+    int any_timeout=0;
+    if (timer->is_timeout()) my_timeout=1;
+    MPI_Allreduce(&my_timeout, &any_timeout, 1, MPI_INT, MPI_SUM, universe->uworld);
+    if (any_timeout) break;
 
     // compute PE
     // notify compute it will be called at next swap
diff --git a/src/USER-MISC/temper_npt.cpp b/src/USER-MISC/temper_npt.cpp
index 55c9aadc6f..0fdcd0ab81 100644
--- a/src/USER-MISC/temper_npt.cpp
+++ b/src/USER-MISC/temper_npt.cpp
@@ -220,7 +220,14 @@ void TemperNPT::command(int narg, char **arg)
 
     timer->init_timeout();
     update->integrate->run(nevery);
-    if (timer->is_timeout()) break;
+
+    // check for timeout across all procs
+
+    int my_timeout=0;
+    int any_timeout=0;
+    if (timer->is_timeout()) my_timeout=1;
+    MPI_Allreduce(&my_timeout, &any_timeout, 1, MPI_INT, MPI_SUM, universe->uworld);
+    if (any_timeout) break;
 
     // compute PE
     // notify compute it will be called at next swap