diff --git a/doc/changelog.d/1628.fixed.md b/doc/changelog.d/1628.fixed.md
new file mode 100644
index 0000000000..e88aedbcbf
--- /dev/null
+++ b/doc/changelog.d/1628.fixed.md
@@ -0,0 +1 @@
+Create port on component (grpc) bug fixed
diff --git a/src/pyedb/grpc/database/source_excitations.py b/src/pyedb/grpc/database/source_excitations.py
index f4a906084b..8b8c64c9d1 100644
--- a/src/pyedb/grpc/database/source_excitations.py
+++ b/src/pyedb/grpc/database/source_excitations.py
@@ -653,7 +653,7 @@ def create_port_on_component(
                     do_pingroup = False
             if do_pingroup:
                 if len(ref_pins) == 1:
-                    ref_pins.is_pin = True
+                    ref_pins[0].is_pin = True
                     ref_pin_group_term = self._create_terminal(ref_pins[0])
                 else:
                     for pin in ref_pins: