diff --git a/scripts/mk_util.py b/scripts/mk_util.py
index c7b48b891..befd78be6 100644
--- a/scripts/mk_util.py
+++ b/scripts/mk_util.py
@@ -1350,8 +1350,8 @@ class MLComponent(Component):
             for f in filter(lambda f: f.endswith('.c'), os.listdir(self.src_dir)):
                 shutil.copyfile(os.path.join(self.src_dir, f), os.path.join(BUILD_DIR, sub_dir, f))
             out.write('libz3ml$(LIB_EXT): %s$(SO_EXT)\n' % get_component(Z3_DLL_COMPONENT).dll_name)
-            out.write('\t$(CXX) $(CXXFLAGS) -I %s api/ml/z3native.c $(CXX_OUTFLAG) api/ml/z3native$(OBJ_EXT)\n' % get_component(API_COMPONENT).to_src_dir)
-            out.write('\t$(AR) $(AR_FLAGS) $(AR_OUTFLAG) libz3ml$(LIB_EXT) api/ml/z3native$(OBJ_EXT)\n')
+            out.write('\t$(CXX) $(CXXFLAGS) -I %s -I %s api/ml/z3native.c $(CXX_OUT_FLAG)api/ml/z3native$(OBJ_EXT)\n' % (OCAML_LIB, get_component(API_COMPONENT).to_src_dir))
+            out.write('\t$(AR) $(AR_FLAGS) $(AR_OUTFLAG)libz3ml$(LIB_EXT) api/ml/z3native$(OBJ_EXT)\n')
             out.write('api/ml/z3.cmxa: libz3ml$(LIB_EXT) %s$(SO_EXT)' % get_component(Z3_DLL_COMPONENT).dll_name)
             for mlfile in get_ml_files(self.src_dir):
                 out.write(' %s' % os.path.join(src_dir, mlfile))