diff --git a/swig/python/gdal-utils/osgeo_utils/ogr_layer_algebra.py b/swig/python/gdal-utils/osgeo_utils/ogr_layer_algebra.py
index 587d501ffe11..b92ea1f9824c 100644
--- a/swig/python/gdal-utils/osgeo_utils/ogr_layer_algebra.py
+++ b/swig/python/gdal-utils/osgeo_utils/ogr_layer_algebra.py
@@ -372,7 +372,7 @@ def main(argv=sys.argv):
         cnt = input_ds.GetLayerCount()
         if cnt != 1:
             print(
-                "Input datasource has not a single layer, so you should specify its name with -input_lyr",
+                "Input datasource has more than just a single layer, so you should specify which layer with -input_lyr",
                 file=sys.stderr,
             )
             return 1