diff --git a/etc/profile b/etc/profile
index 4fca22b..242a4f9 100644
--- a/etc/profile
+++ b/etc/profile
@@ -10,6 +10,6 @@ export LD_LIBRARY_PATH="${RBPKG_DIR}/lib:${LD_LIBRARY_PATH}"
# compile time
-export CPPFLAGS="${CPPFLAGS} -I${RBPKG_DIR}/include"
-export LDFLAGS="${LDFLAGS} -L${RBPKG_DIR}/lib"
+export CPPFLAGS="${CPPFLAGS} -I/usr/local/include -I${RBPKG_DIR}/include"
+export LDFLAGS="${LDFLAGS} -L/usr/local/lib -L${RBPKG_DIR}/lib"
export PKG_CONFIG_PATH="${RBPKG_DIR}/lib/pkgconfig"