diff --git a/protobuf-maven-plugin/src/main/java/io/github/ascopes/protobufmavenplugin/sources/ProtoSourceResolver.java b/protobuf-maven-plugin/src/main/java/io/github/ascopes/protobufmavenplugin/sources/ProtoSourceResolver.java
index 80ebd64f..46214ad0 100644
--- a/protobuf-maven-plugin/src/main/java/io/github/ascopes/protobufmavenplugin/sources/ProtoSourceResolver.java
+++ b/protobuf-maven-plugin/src/main/java/io/github/ascopes/protobufmavenplugin/sources/ProtoSourceResolver.java
@@ -179,7 +179,9 @@ private Path getArchiveExtractionRoot() {
   }
 
   private String generateUniqueName(Path path) {
-    var digest = Digests.sha1(path.toAbsolutePath().toString());
+    // Use a URI here as the URI will correctly encapsulate archives within archives. Paths may have
+    // name collisions between archives using the same relative file paths internally.
+    var digest = Digests.sha1(FileUtils.normalize(path).toUri().toASCIIString());
     return FileUtils.getFileNameWithoutExtension(path) + "-" + digest;
   }
 }