diff --git a/dev-cpp/clucene/clucene-2.3.3.4-r10.ebuild b/dev-cpp/clucene/clucene-2.3.3.4-r10.ebuild
index 0736f417a13b1..8700e7024d89d 100644
--- a/dev-cpp/clucene/clucene-2.3.3.4-r10.ebuild
+++ b/dev-cpp/clucene/clucene-2.3.3.4-r10.ebuild
@@ -40,6 +40,7 @@ src_prepare() {
 	sed -i \
 		-e '/ADD_SUBDIRECTORY (src\/ext)/d' \
 		CMakeLists.txt || die
+	# don't reference non-existent paths in .pc file (bug #950316)
 	sed -i \
 		-e 's%\(:\| -I\)${prefix}/include/CLucene/ext%%g' \
 		./src/core/libclucene-core.pc.cmake || die