diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index bea85a9974d9e..51eaff1ae99f2 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -1170,6 +1170,8 @@ public final class ActivityThread extends ClientTransactionHandler {
             } catch (IOException e) {
                 Slog.e(TAG, "Failed to duplicate heap dump file descriptor", e);
                 return;
+            } finally {
+                IoUtils.closeQuietly(fd);
             }
             dhd.finishCallback = finishCallback;
             sendMessage(H.DUMP_HEAP, dhd, 0, 0, true /*async*/);