diff --git a/stim/parser/filename.h b/stim/parser/filename.h
index 4ba2147..21a9361 100644
--- a/stim/parser/filename.h
+++ b/stim/parser/filename.h
@@ -19,8 +19,9 @@
 #include <algorithm>
 
 #include "../parser/parser.h"
-
+#ifdef BOOST_PRECOMPILED
 #include <boost/filesystem.hpp>
+#endif
 
 namespace stim{
 
@@ -154,6 +155,7 @@ public:
 
 		return ss.str();
 	}
+#ifdef BOOST_PRECOMPILED
 
 	//get a list of files matching the current template
 	std::vector<stim::filename> get_list(){
@@ -193,7 +195,7 @@ public:
 
 		return file_list;
 	}
-
+#endif
 	//gets the current working directory
 	static stim::filename cwd(){
 
--
libgit2 0.21.4