diff --git a/glances/exports/glances_graph/__init__.py b/glances/exports/glances_graph/__init__.py
index 4138c014..e76bdd6c 100644
--- a/glances/exports/glances_graph/__init__.py
+++ b/glances/exports/glances_graph/__init__.py
@@ -17,7 +17,7 @@ import pygal.style
 from pygal import DateTimeLine
 
 from glances.exports.export import GlancesExport
-from glances.globals import iteritems, time_serie_subsample
+from glances.globals import iteritems, time_series_subsample
 from glances.logger import logger
 from glances.timer import Timer
 
@@ -120,7 +120,7 @@ class Export(GlancesExport):
             x_label_rotation=20,
             x_value_formatter=lambda dt: dt.strftime('%Y/%m/%d %H:%M:%S'),
         )
-        for k, v in iteritems(time_serie_subsample(data, self.width)):
+        for k, v in iteritems(time_series_subsample(data, self.width)):
             chart.add(k, v)
         chart.render_to_file(os.path.join(self.path, title + '.svg'))
         return True
diff --git a/glances/globals.py b/glances/globals.py
index e6c24ce0..b9e2767b 100644
--- a/glances/globals.py
+++ b/glances/globals.py
@@ -166,7 +166,7 @@ def subsample(data, sampling):
     return [mean(data[s * sampling_length : (s + 1) * sampling_length]) for s in range(0, sampling)]
 
 
-def time_serie_subsample(data, sampling):
+def time_series_subsample(data, sampling):
     """Compute a simple mean subsampling.
 
     Data should be a list of set (time, value)