diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/LsTree.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/LsTree.java
index 01fa7eeb8..d2bf9ac18 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/LsTree.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/LsTree.java
@@ -45,6 +45,7 @@
 
 package org.eclipse.jgit.pgm;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -72,7 +73,7 @@ class LsTree extends TextBuiltin {
 
 	/** {@inheritDoc} */
 	@Override
-	protected void run() throws Exception {
+	protected void run() {
 		try (TreeWalk walk = new TreeWalk(db)) {
 			walk.reset(); // drop the first empty tree, which we do not need here
 			if (paths.size() > 0)
@@ -95,6 +96,8 @@ protected void run() throws Exception {
 				outw.print(QuotedString.GIT_PATH.quote(walk.getPathString()));
 				outw.println();
 			}
+		} catch (IOException e) {
+			throw die(e.getMessage(), e);
 		}
 	}
 }