diff --git a/README.md b/README.md
index 638496a..87cfd7a 100644
--- a/README.md
+++ b/README.md
@@ -72,7 +72,7 @@ optional arguments:
                         shacl Shapes Graph before before validating the Data
                         Graph.
   --imports             Allow import of sub-graphs defined in statements with
-                        ow:imports.
+                        owl:import.
   -a, --abort           Abort on first error.
   -d, --debug           Output additional runtime messages.
   -f {human,turtle,xml,json-ld,nt,n3}, --format {human,turtle,xml,json-ld,nt,n3}
diff --git a/pyshacl/cli.py b/pyshacl/cli.py
index b059a7f..895b8b5 100644
--- a/pyshacl/cli.py
+++ b/pyshacl/cli.py
@@ -21,7 +21,7 @@
                     default=False, help='Validate the SHACL Shapes graph against the shacl-shacl '
                     'Shapes Graph before before validating the Data Graph.')
 parser.add_argument('--imports', dest='imports', action='store_true',
-                    default=False, help='Allow import of sub-graphs defined in statements with ow:imports.')
+                    default=False, help='Allow import of sub-graphs defined in statements with owl:import.')
 parser.add_argument('-a', '--abort', dest='abort', action='store_true',
                     default=False, help='Abort on first error.')
 parser.add_argument('-d', '--debug', dest='debug', action='store_true',