diff --git a/dist/build.gradle b/dist/build.gradle
index 7f5f09b9d..a46a36bed 100644
--- a/dist/build.gradle
+++ b/dist/build.gradle
@@ -40,11 +40,11 @@ task createChecksums(type: Checksum) {
     doLast {
         def artifactChecksumsSha256Hex = new HashMap<String, String>()
         for (final def file in outputDirectory.get().getAsFileTree().files) {
-            if (file.toString().endsWith('mapping.map') || file.toString().endsWith('.asc')) {
+            def name = file.name.lastIndexOf('.').with {it != -1 ? file.name[0..<it] : file.name}
+            if (name.endsWith('mapping.map') || name.endsWith('.asc')) {
                 continue
             }
 
-            def name = file.name.lastIndexOf('.').with {it != -1 ? file.name[0..<it] : file.name}
             artifactChecksumsSha256Hex.put(name, file.text.trim())
         }