diff --git a/proto/equal.go b/proto/equal.go
index 67948dd..12d064d 100644
--- a/proto/equal.go
+++ b/proto/equal.go
@@ -74,6 +74,11 @@
 	return equalUnknown(mx.GetUnknown(), my.GetUnknown())
 }
 
+// EqualField compares two fields.
+func EqualField(fd protoreflect.FieldDescriptor, x, y protoreflect.Value) bool {
+	return equalField(fd, x, y)
+}
+
 // equalField compares two fields.
 func equalField(fd protoreflect.FieldDescriptor, x, y protoreflect.Value) bool {
 	switch {