diff --git a/src/outputs/output_attr.hpp b/src/outputs/output_attr.hpp
index 20e471c4c415..8607157e09a2 100644
--- a/src/outputs/output_attr.hpp
+++ b/src/outputs/output_attr.hpp
@@ -18,6 +18,8 @@
 #ifndef OUTPUTS_OUTPUT_ATTR_HPP_
 #define OUTPUTS_OUTPUT_ATTR_HPP_
 
+#include <vector>
+
 // JMM: This could probably be done with template magic but I think
 // using a macro is honestly the simplest and cleanest solution here.
 // Template solution would be to define a variatic class to conain the
@@ -42,4 +44,4 @@
   PARTHENON_ATTR_APPLY(Kokkos::View<T ***, LayoutWrapper, DevMemSpace>);                 \
   PARTHENON_ATTR_APPLY(device_view_t<T>)
 
-#endif // OUTPUTS_OUTPUT_ATTR_HPP_
\ No newline at end of file
+#endif // OUTPUTS_OUTPUT_ATTR_HPP_
diff --git a/src/outputs/parthenon_opmd.cpp b/src/outputs/parthenon_opmd.cpp
index 201ae74f9fec..c0ee2aa434b2 100644
--- a/src/outputs/parthenon_opmd.cpp
+++ b/src/outputs/parthenon_opmd.cpp
@@ -614,10 +614,10 @@ void OpenPMDOutput::WriteOutputFile(Mesh *pm, ParameterInput *pin, SimTime *tm,
             }
           }
         } // loop over components
-      } // out_var->IsAllocated()
-    } // loop over blocks
+      }   // out_var->IsAllocated()
+    }     // loop over blocks
     it.seriesFlush();
-  } // loop over vars
+  }                               // loop over vars
   Kokkos::Profiling::popRegion(); // write all variable data
 
   // -------------------------------------------------------------------------------- //
@@ -660,11 +660,13 @@ void OpenPMDOutput::WriteOutputFile(Mesh *pm, ParameterInput *pin, SimTime *tm,
   series.close();
 #endif // ifndef PARTHENON_ENABLE_OPENPMD
 
-  // advance output parameters
-  output_params.file_number++;
-  output_params.next_time += output_params.dt;
-  pin->SetInteger(output_params.block_name, "file_number", output_params.file_number);
-  pin->SetReal(output_params.block_name, "next_time", output_params.next_time);
+  // advance output parameters if this is not a triggered (now or final) output
+  if (signal == SignalHandler::OutputSignal::none) {
+    output_params.file_number++;
+    output_params.next_time += output_params.dt;
+    pin->SetInteger(output_params.block_name, "file_number", output_params.file_number);
+    pin->SetReal(output_params.block_name, "next_time", output_params.next_time);
+  }
 }
 
 } // namespace parthenon
diff --git a/tst/unit/test_unit_params.cpp b/tst/unit/test_unit_params.cpp
index 994f17727387..aae19bd1916c 100644
--- a/tst/unit/test_unit_params.cpp
+++ b/tst/unit/test_unit_params.cpp
@@ -264,9 +264,9 @@ TEMPLATE_LIST_TEST_CASE("A set of params can be dumped to file", "[params][outpu
           auto &in_hostarr2d_v = in_hostarr2d.KokkosView();
           resfile.RestoreViewAttribute(groupname + delim + prefix + delim + "hostarr2d",
                                        in_hostarr2d_v);
-          //  TODO(pgrete) make this work and also add checks for correctness below
+          // TODO(pgrete) make this work and also add checks for correctness below
           // resfile.RestoreViewAttribute(groupname + delim + prefix + delim + "bool1d",
-          //  in_bool1d);
+          // in_bool1d);
         }
         REQUIRE(scalar == in_scalar);