diff --git a/pyfstat.py b/pyfstat.py
index 846d8deda5976f063699d885dc5388c2d931da40..18368b16baf1fbfe94934fc0c429955b2092e954 100755
--- a/pyfstat.py
+++ b/pyfstat.py
@@ -293,7 +293,7 @@ class SemiCoherentGlitchSearch(BaseSearchClass, ComputeFstat):
     """
 
     @initializer
-    def __init__(self, label, outdir, tref, tstart, tend, nglitches=0,
+    def __init__(self, label, outdir, tref, tstart, tend, nglitch=0,
                  sftlabel=None, sftdir=None, minCoverFreq=None,
                  maxCoverFreq=None, detector=None, earth_ephem=None,
                  sun_ephem=None):