1 files changed, 1 insertions, 1 deletions
diff --git a/src/port.c b/src/port.c
index f1346b4..a0de260 100644
--- a/src/port.c
+++ b/src/port.c
@@ -48,7 +48,7 @@ slv2_port_is_a(SLV2Plugin plugin,
                SLV2Port   port,
                SLV2Value  port_class)
 {
-	SLV2_FOREACH(i, port->classes)
+	SLV2_FOREACH(values, i, port->classes)
 		if (slv2_value_equals(slv2_values_get(port->classes, i), port_class))
 			return true;