diff --git a/dev-ml/chrome-trace/chrome-trace-3.16.0.ebuild b/dev-ml/chrome-trace/chrome-trace-3.16.0-r1.ebuild
similarity index 90%
rename from dev-ml/chrome-trace/chrome-trace-3.16.0.ebuild
rename to dev-ml/chrome-trace/chrome-trace-3.16.0-r1.ebuild
index af6b973efa..987cc53692 100644
--- a/dev-ml/chrome-trace/chrome-trace-3.16.0.ebuild
+++ b/dev-ml/chrome-trace/chrome-trace-3.16.0-r1.ebuild
@@ -32,6 +32,12 @@ DEPEND="
 	${RDEPEND}
 "
 
+src_prepare() {
+	default
+
+	rm -r vendor/{csexp,pp} || die
+}
+
 src_configure() {
 	:
 }