diff --git a/src/data/ADC_Result.py b/src/data/ADC_Result.py
index 69377f3..df1e67c 100644
--- a/src/data/ADC_Result.py
+++ b/src/data/ADC_Result.py
@@ -232,6 +232,7 @@ class ADC_Result(Resultable, Drawable, DamarisFFT, Signalpath):
                 if self.description is not None:
                     for (key,value) in self.description.iteritems():
                         accu_group._v_attrs.__setattr__("description_"+key,str(value))
+                accu_group._v_attrs.__setattr__("sampling_rate",self.sampling_rate)
 
                 # save interval information
                 filter=None
diff --git a/src/data/Accumulation.py b/src/data/Accumulation.py
index 193913e..4425556 100644
--- a/src/data/Accumulation.py
+++ b/src/data/Accumulation.py
@@ -428,7 +428,7 @@ class Accumulation(Errorable, Drawable, DamarisFFT, Signalpath):
                 if self.common_descriptions is not None:
                     for (key,value) in self.common_descriptions.iteritems():
                         accu_group._v_attrs.__setattr__("description_"+key,str(value))
-
+                accu_group._v_attrs.__setattr__("sampling_rate",self.sampling_rate)
                 # save interval information
                 filter=None
                 if complib is not None: