diff --git a/protogen/protogen.go b/protogen/protogen.go
index fdacc43..4e76c30 100644
--- a/protogen/protogen.go
+++ b/protogen/protogen.go
@@ -896,7 +896,7 @@
 		if _, ok := g.packageNames[importPath]; ok {
 			continue
 		}
-		astutil.AddNamedImport(fset, file, "_", string(importPath))
+		astutil.AddNamedImport(fset, file, "_", rewriteImport(string(importPath)))
 	}
 	ast.SortImports(fset, file)