diff --git a/libtorrent-rasterbar.pc.in b/libtorrent-rasterbar.pc.in
index 0e828f2c9..66201060f 100644
--- a/libtorrent-rasterbar.pc.in
+++ b/libtorrent-rasterbar.pc.in
@@ -13,5 +13,5 @@ Description: Bittorrent library.
 Version: @VERSION@
 Libs: -L${libdir} -ltorrent-rasterbar
 Libs.private: @LIBS@ @BOOST_FILESYSTEM_LIB@ @BOOST_THREAD_LIB@ @PTHREAD_LIBS@ @SSL_LIBS@ @BOOST_SYSTEM_LIB@ @SSL_LDFLAGS@
-Cflags: -I${includedir} -I${includedir}/libtorrent @COMPILETIME_OPTIONS@ @CPPFLAGS@ @SSL_CXXFLAGS@
+Cflags: -I${includedir} -I${includedir}/libtorrent @COMPILETIME_OPTIONS@ @SSL_CXXFLAGS@