diff --git a/net/unison/Makefile b/net/unison/Makefile
index f1253315569..13e8ebb31fa 100644
--- a/net/unison/Makefile
+++ b/net/unison/Makefile
@@ -38,7 +38,8 @@ WANTLIB +=	Xrandr Xrender atk-1.0 cairo fontconfig freetype gdk-x11-2.0
 WANTLIB +=	gdk_pixbuf-2.0 gio-2.0 glib-2.0 gobject-2.0 gtk-x11-2.0
 WANTLIB +=	harfbuzz intl pango-1.0 pangocairo-1.0 pangoft2-1.0
 WANTLIB +=	z
-BUILD_DEPENDS +=	x11/lablgtk2
+BUILD_DEPENDS +=	sysutils/findlib \
+			x11/lablgtk2
 LIB_DEPENDS +=		x11/gtk+2
 MAKE_FLAGS +=		UISTYLE=gtk2
 .endif