diff --git a/thunderbird.spec b/thunderbird.spec
index 5b1e1e6..fd7d8d7 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -104,6 +104,7 @@ BuildRequires:  autoconf213
 BuildRequires:  desktop-file-utils
 BuildRequires:  libcurl-devel
 BuildRequires:  glibc-static
+BuildRequires:  libstdc++-devel
 Requires:       mozilla-filesystem
 Requires:       nspr >= %{nspr_version}
 Requires:       nss >= %{nss_version}