diff --git a/build/tools.atree b/build/tools.atree
index bc0389d..3355d6d 100644
--- a/build/tools.atree
+++ b/build/tools.atree
@@ -52,7 +52,6 @@
 bin/etc1tool                                  strip tools/etc1tool
 bin/hprof-conv                                strip tools/hprof-conv
 bin/mksdcard                                  strip tools/mksdcard
-bin/zipalign                                  strip tools/zipalign
 
 # emulator
 bin/emulator                                  strip tools/emulator
diff --git a/build/tools.windows.atree b/build/tools.windows.atree
index 5e5e766..2ae2db1 100755
--- a/build/tools.windows.atree
+++ b/build/tools.windows.atree
@@ -89,9 +89,6 @@
 rm tools/uiautomatorviewer
 prebuilts/devtools/tools/uiautomatorviewer.bat    tools/uiautomatorviewer.bat
 
-rm tools/zipalign
-bin/zipalign.exe                            strip tools/zipalign.exe
-
 # RCP Monitor. Remove linux stuff and replace by Windows files.
 rm tools/monitor
 rm tools/lib/monitor-x86