diff --git a/ibus-libpinyin.spec b/ibus-libpinyin.spec
index 25de96d..5845cc6 100644
--- a/ibus-libpinyin.spec
+++ b/ibus-libpinyin.spec
@@ -14,6 +14,7 @@ Patch0:     ibus-libpinyin-1.9.x-head.patch
 
 Requires:       python3-gobject
 Requires:       ibus >= 1.5.11
+BuildRequires:  gcc-c++
 BuildRequires:  gettext-devel
 BuildRequires:  intltool
 BuildRequires:  libtool