diff --git a/audio/gnuitar/Makefile b/audio/gnuitar/Makefile
index 8c9e49dbe1a9..85c0462643eb 100644
--- a/audio/gnuitar/Makefile
+++ b/audio/gnuitar/Makefile
@@ -24,4 +24,8 @@ CONFIGURE_ARGS+=--with-gtk2 \
 pre-fetch:
 	@${CAT} pkg-message
 
+post-patch:
+	@${REINPLACE_CMD} -e "s|-lpthread|${PTHREAD_LIBS}|g" \
+		${WRKSRC}/configure ${WRKSRC}/src/Makefile
+
 .include <bsd.port.mk>