diff --git a/cc/binary.go b/cc/binary.go
index 9bb0b16..50a83e7 100644
--- a/cc/binary.go
+++ b/cc/binary.go
@@ -388,7 +388,7 @@
 
 	objs.coverageFiles = append(objs.coverageFiles, deps.StaticLibObjs.coverageFiles...)
 	objs.coverageFiles = append(objs.coverageFiles, deps.WholeStaticLibObjs.coverageFiles...)
-	binary.coverageOutputFile = TransformCoverageFilesToLib(ctx, objs, builderFlags, binary.getStem(ctx))
+	binary.coverageOutputFile = TransformCoverageFilesToZip(ctx, objs, binary.getStem(ctx))
 
 	// Need to determine symlinks early since some targets (ie APEX) need this
 	// information but will not call 'install'