diff --git a/gramps/gen/datehandler/_date_de.py b/gramps/gen/datehandler/_date_de.py
index 1985fee3a..bc8f7e723 100644
--- a/gramps/gen/datehandler/_date_de.py
+++ b/gramps/gen/datehandler/_date_de.py
@@ -221,7 +221,7 @@ class DateDisplayDE(DateDisplay):
         )
         # this definition must agree with its "_display_gregorian" method
 
-    def _display_gregorian(self, date_val):
+    def _display_gregorian(self, date_val, **kwargs):
         """
         display gregorian calendar date in different format
         """
diff --git a/gramps/gen/datehandler/_date_el.py b/gramps/gen/datehandler/_date_el.py
index 8a1828a39..3c6ecefca 100644
--- a/gramps/gen/datehandler/_date_el.py
+++ b/gramps/gen/datehandler/_date_el.py
@@ -155,7 +155,7 @@ class DateDisplayEL(DateDisplay):
         )
         # this definition must agree with its "_display_gregorian" method
 
-    def _display_gregorian(self, date_val):
+    def _display_gregorian(self, date_val, **kwargs):
         """
         display gregorian calendar date in different format
         """
diff --git a/gramps/gen/datehandler/_date_lt.py b/gramps/gen/datehandler/_date_lt.py
index 4dad8b644..8e7a34e17 100644
--- a/gramps/gen/datehandler/_date_lt.py
+++ b/gramps/gen/datehandler/_date_lt.py
@@ -185,7 +185,7 @@ class DateDisplayLT(DateDisplay):
         "mmmm-MM-DD (ISO)", "mmmm m. mėnesio diena d.", "Mėn diena, metai")
         # this definition must agree with its "_display_gregorian" method
 
-    def _display_gregorian(self, date_val):
+    def _display_gregorian(self, date_val, **kwargs):
         """
         display gregorian calendar date in different format
         """
diff --git a/gramps/gen/datehandler/_date_nl.py b/gramps/gen/datehandler/_date_nl.py
index 10ccdd6a0..d4971df21 100644
--- a/gramps/gen/datehandler/_date_nl.py
+++ b/gramps/gen/datehandler/_date_nl.py
@@ -164,7 +164,7 @@ class DateDisplayNL(DateDisplay):
         )
         # this definition must agree with its "_display_gregorian" method
 
-    def _display_gregorian(self, date_val):
+    def _display_gregorian(self, date_val, **kwargs):
         """
         display gregorian calendar date in different format
         """
diff --git a/gramps/gen/datehandler/_date_pl.py b/gramps/gen/datehandler/_date_pl.py
index cc5b38047..606c80915 100644
--- a/gramps/gen/datehandler/_date_pl.py
+++ b/gramps/gen/datehandler/_date_pl.py
@@ -215,7 +215,7 @@ class DateDisplayPL(DateDisplay):
         "XII"
         )
 
-    def _display_gregorian(self, date_val):
+    def _display_gregorian(self, date_val, **kwargs):
         """
         display gregorian calendar date in different format
         """
diff --git a/gramps/gen/datehandler/_date_sr.py b/gramps/gen/datehandler/_date_sr.py
index f03d76942..60487fe6e 100644
--- a/gramps/gen/datehandler/_date_sr.py
+++ b/gramps/gen/datehandler/_date_sr.py
@@ -240,7 +240,7 @@ class DateDisplaySR_Base(DateDisplay):
         "VII", "VIII", "IX", "X", "XI", "XII"
         )
 
-    def _display_gregorian(self, date_val):
+    def _display_gregorian(self, date_val, **kwargs):
         """
         display gregorian calendar date in different format
         """