diff --git a/src/grid3d_maps/avghc/_get_zonation_filters.py b/src/grid3d_maps/avghc/_get_zonation_filters.py
index aa399b9..1eab7c6 100644
--- a/src/grid3d_maps/avghc/_get_zonation_filters.py
+++ b/src/grid3d_maps/avghc/_get_zonation_filters.py
@@ -25,7 +25,7 @@ def zonation(config, grd):
     """
 
     if "zproperty" in config["zonation"] and "zranges" in config["zonation"]:
-        raise ValueError('Cannot have both "zproperty" and "zranges" in ' '"zonation"')
+        raise ValueError('Cannot have both "zproperty" and "zranges" in "zonation"')
 
     usezonation = np.zeros(grd.dimensions, dtype=np.int32)
     zoned = {}