diff --git a/base/src/main/java/proguard/normalize/StringNormalizer.java b/base/src/main/java/proguard/normalize/StringNormalizer.java
index e65b21e6..4bb4e201 100644
--- a/base/src/main/java/proguard/normalize/StringNormalizer.java
+++ b/base/src/main/java/proguard/normalize/StringNormalizer.java
@@ -3,7 +3,6 @@
 import proguard.AppView;
 import proguard.classfile.visitor.ParallelAllClassVisitor;
 import proguard.pass.Pass;
-import proguard.pass.PassId;
 
 /**
  * Ensures all strings are at most 65535 bytes in length, when encoded as modified UTF-8.