diff --git a/tools/mkstubs/src/com/android/mkstubs/Main.java b/tools/mkstubs/src/com/android/mkstubs/Main.java
index 01cda71c8..55f949968 100644
--- a/tools/mkstubs/src/com/android/mkstubs/Main.java
+++ b/tools/mkstubs/src/com/android/mkstubs/Main.java
@@ -171,7 +171,9 @@ public class Main {
                 addString(p, line);
             }
         } finally {
-            br.close();
+            if (br != null) {
+                br.close();
+            }
         }
     }