diff --git a/source/dub/packagemanager.d b/source/dub/packagemanager.d
index 6a06493..ff03744 100644
--- a/source/dub/packagemanager.d
+++ b/source/dub/packagemanager.d
@@ -605,7 +605,7 @@
 		}
 		auto hash = sha1.finish();
 		logDebug("Project hash: %s", hash);
-		return hash[0..$];
+		return hash[].dup;
 	}
 
 	private void writeLocalPackageList(LocalPackageType type)