diff --git a/python/tvm/_ffi/libinfo.py b/python/tvm/_ffi/libinfo.py
index fdd888a470..b27d4247fd 100644
--- a/python/tvm/_ffi/libinfo.py
+++ b/python/tvm/_ffi/libinfo.py
@@ -165,9 +165,11 @@ def find_include_path(name=None, search_path=None, optional=False):
     include_path : list(string)
         List of all found paths to header files.
     """
-    ffi_dir = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
-    source_dir = os.path.join(ffi_dir, "..", "..", "..")
-
+    if os.environ.get("TVM_HOME", None):
+        source_dir = os.environ["TVM_HOME"]
+    else:
+        ffi_dir = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
+        source_dir = os.path.join(ffi_dir, "..", "..", "..")
     third_party_dir = os.path.join(source_dir, "3rdparty")
 
     header_path = []
diff --git a/src/relax/transform/attach_global_symbol.cc b/src/relax/transform/attach_global_symbol.cc
index be779e97bc..cd771c607d 100644
--- a/src/relax/transform/attach_global_symbol.cc
+++ b/src/relax/transform/attach_global_symbol.cc
@@ -39,6 +39,8 @@ class GlobalSymbolAttacher {
         func = WithAttr(GetRef<tir::PrimFunc>(prim_func), "global_symbol", p.first->name_hint);
       } else if (auto* relax_func = func.as<FunctionNode>()) {
         func = WithAttr(GetRef<Function>(relax_func), "global_symbol", p.first->name_hint);
+      } else if (auto* extern_func = func.as<ExternFuncNode>()) {
+        func = WithAttr(GetRef<ExternFunc>(extern_func), "global_symbol", p.first->name_hint);
       } else {
         LOG(FATAL) << "Unsupported function type: " << func->GetTypeKey();
         throw;