diff --git a/devel/ocaml-pcre/Makefile b/devel/ocaml-pcre/Makefile
index 846591be95a3..29d1df039f58 100644
--- a/devel/ocaml-pcre/Makefile
+++ b/devel/ocaml-pcre/Makefile
@@ -30,6 +30,7 @@ ALL_TARGET=	all
 
 .if !defined(NOPORTDOCS)
 BUILD_DEPENDS+=	latex:${PORTSDIR}/print/teTeX
+USE_GHOSTSCRIPT_BUILD=	yes
 ALL_TARGET+=	doc
 PORTDOCS=	*