diff --git a/vgo-cli/optimize.pro b/vgo-cli/optimize.pro
index a94c33bd..ada621fb 100644
--- a/vgo-cli/optimize.pro
+++ b/vgo-cli/optimize.pro
@@ -7,4 +7,7 @@
 
 -keep class com.jzbrooks.vgo.cli.CommandLineInterface {
   public static void main(java.lang.String[]);
-}
\ No newline at end of file
+}
+
+# Used in an EnumMap inside tools-sdk code. It is required for converting vectors with clip paths.
+-keep,allowoptimization enum com.android.ide.common.vectordrawable.SvgNode$ClipRule
\ No newline at end of file