diff --git a/org.eclipse.jgit.lfs/src/org/eclipse/jgit/lfs/SmudgeFilter.java b/org.eclipse.jgit.lfs/src/org/eclipse/jgit/lfs/SmudgeFilter.java
index e89b7b086..e2ab30923 100644
--- a/org.eclipse.jgit.lfs/src/org/eclipse/jgit/lfs/SmudgeFilter.java
+++ b/org.eclipse.jgit.lfs/src/org/eclipse/jgit/lfs/SmudgeFilter.java
@@ -185,7 +185,8 @@ public static Collection<Path> downloadLfsResource(Lfs lfs, Repository db,
 				if (o.error != null) {
 					throw new IOException(
 							MessageFormat.format(LfsText.get().protocolError,
-									o.error.code, o.error.message));
+									Integer.valueOf(o.error.code),
+									o.error.message));
 				}
 				if (o.actions == null) {
 					continue;