diff --git a/net-libs/sofia-sip/sofia-sip-1.13.4.ebuild b/net-libs/sofia-sip/sofia-sip-1.13.4.ebuild
index d43461c..49cd3c4 100644
--- a/net-libs/sofia-sip/sofia-sip-1.13.4.ebuild
+++ b/net-libs/sofia-sip/sofia-sip-1.13.4.ebuild
@@ -25,6 +25,7 @@ BDEPEND="virtual/pkgconfig"
 src_configure() {
 	sh autogen.sh
 	./configure \
+		--prefix=/usr \
 		--disable-static \
 		$(use_with ssl openssl)
 }