diff --git a/cppkafka.pc.in b/cppkafka.pc.in
index a3450af..f0b8214 100644
--- a/cppkafka.pc.in
+++ b/cppkafka.pc.in
@@ -11,4 +11,4 @@ Version: @CPPKAFKA_VERSION@
 Requires: librdkafka >= 0.9.4
 Requires.private:
 Libs: -L${libdir} -L${sharedlibdir} -L@RDKAFKA_ROOT_DIR@/lib -lcppkafka -lrdkafka -lpthread -lrt -lssl -lcrypto -ldl -lz
-Cflags: -I${includedir} -I${includedir}/cppkafka -I@RDKAFKA_ROOT_DIR@/include
+Cflags: -I${includedir} -I${includedir}/cppkafka -I@RDKAFKA_ROOT_DIR@/include -I@Boost_INCLUDE_DIRS@