diff --git a/textproc/ruby-htree/Makefile b/textproc/ruby-htree/Makefile
index 4f90158383a8..f43c546b8b71 100644
--- a/textproc/ruby-htree/Makefile
+++ b/textproc/ruby-htree/Makefile
@@ -29,7 +29,7 @@ PORTDOCS=	*
 
 do-build:
 .if ${PORT_OPTIONS:MDOCS}
-	cd ${BUILD_WRKSRC}; ${LOCALBASE}/bin/rdoc${RUBY_SUFFIX} ${LIB_FILES}
+	cd ${BUILD_WRKSRC}; ${LOCALBASE}/bin/rdoc ${LIB_FILES}
 .endif
 
 do-install: