diff --git a/Servers/Filters/vtkFileSeriesReader.cxx b/Servers/Filters/vtkFileSeriesReader.cxx
index 96d86fb..d142cd8 100644
--- a/Servers/Filters/vtkFileSeriesReader.cxx
+++ b/Servers/Filters/vtkFileSeriesReader.cxx
@@ -60,6 +60,7 @@ class vtkFileSeriesReaderTimeRanges
 {
 public:
   void Reset();
+  int Length();
   void AddTimeRange(int index, vtkInformation *srcInfo);
   int GetAggregateTimeInfo(vtkInformation *outInfo);
   int GetInputTimeInfo(int index, vtkInformation *outInfo);
@@ -83,6 +84,12 @@ void vtkFileSeriesReaderTimeRanges::Reset()
 }
 
 //-----------------------------------------------------------------------------
+int vtkFileSeriesReaderTimeRanges::Length()
+{
+  return this->RangeMap.size();
+}
+
+//-----------------------------------------------------------------------------
 void vtkFileSeriesReaderTimeRanges::AddTimeRange(int index,
                                                  vtkInformation *srcInfo)
 {
@@ -553,6 +560,27 @@ int vtkFileSeriesReader::RequestInformation(
       this->RequestInformationForInput(i, request, outputVector);
       this->Internal->TimeRanges->AddTimeRange(i, outInfo);
       }
+
+    // Catch case where multiple files set the same timestep
+    int numTimeSteps = this->Internal->TimeRanges->Length();
+    if (numTimeSteps < numFiles)
+      {
+      vtkWarningMacro("Multiple files contain identical time step values. "
+                      << "Reverting to fake time step values.");
+
+      this->Internal->TimeRanges->Reset();
+      outInfo->Remove(vtkStreamingDemandDrivenPipeline::TIME_STEPS());
+      outInfo->Remove(vtkStreamingDemandDrivenPipeline::TIME_RANGE());
+
+      // Input files have non-unique time steps. Fake a time step for each equal to the
+      // index.
+      for (int i = 0; i < numFiles; i++)
+        {
+        double time = (double)i;
+        outInfo->Set(vtkStreamingDemandDrivenPipeline::TIME_STEPS(), &time, 1);
+        this->Internal->TimeRanges->AddTimeRange(i, outInfo);
+        }
+      }
     }
 
   // Now that we have collected all of the time information, set the aggregate