diff --git a/binding.gyp b/binding.gyp
index 8882267..f6fcb8c 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -15,7 +15,13 @@
         "<!@(ls -1 deps/libhdt/src/rdf/*.cpp)",
         "<!@(ls -1 deps/libhdt/src/sequence/*.cpp)",
         "<!@(ls -1 deps/libhdt/src/triples/*.cpp)",
-        "<!@(ls -1 deps/libhdt/src/util/*.cpp)",
+        "<!@(ls -1 deps/libhdt/src/util/bitutil.cpp)",
+        "<!@(ls -1 deps/libhdt/src/util/crc16.cpp)",
+        "<!@(ls -1 deps/libhdt/src/util/crc32.cpp)",
+        "<!@(ls -1 deps/libhdt/src/util/crc8.cpp)",
+        "<!@(ls -1 deps/libhdt/src/util/fileUtil.cpp)",
+        "<!@(ls -1 deps/libhdt/src/util/filemap.cpp)",
+        "<!@(ls -1 deps/libhdt/src/util/propertyutil.cpp)",
         "<!@(ls -1 deps/libcds/src/static/bitsequence/*.cpp)",
         "<!@(ls -1 deps/libcds/src/static/coders/*.cpp)",
         "<!@(ls -1 deps/libcds/src/static/mapper/*.cpp)",