diff --git a/mail-filter/exim-geoip/exim-geoip-0.1.ebuild b/mail-filter/exim-geoip/exim-geoip-0.1-r1.ebuild
similarity index 91%
rename from mail-filter/exim-geoip/exim-geoip-0.1.ebuild
rename to mail-filter/exim-geoip/exim-geoip-0.1-r1.ebuild
index a2f6fdee4d5ba..589d796149ff1 100644
--- a/mail-filter/exim-geoip/exim-geoip-0.1.ebuild
+++ b/mail-filter/exim-geoip/exim-geoip-0.1-r1.ebuild
@@ -19,7 +19,7 @@ RDEPEND="${DEPEND}"
 S="${WORKDIR}/exim-geoipv6-dlfunc-${PV}"
 
 src_configure() {
-	append-cppflags "-I/usr/include/exim"
+	append-cppflags "-I/usr/include/exim -DDLFUNC_IMPL"
 	econf
 }