Index: packages/Python/lldbsuite/test/lang/cpp/gmodules/TestWithModuleDebugging.py
===================================================================
--- packages/Python/lldbsuite/test/lang/cpp/gmodules/TestWithModuleDebugging.py
+++ packages/Python/lldbsuite/test/lang/cpp/gmodules/TestWithModuleDebugging.py
@@ -9,8 +9,6 @@
 
     mydir = TestBase.compute_mydir(__file__)
 
-    @expectedFailureAll(bugnumber="llvm.org/pr33875", oslist=["linux"],
-            compiler="clang", compiler_version=[">", "6.0"])
     @add_test_categories(["gmodules"])
     def test_specialized_typedef_from_pch(self):
         self.build()
Index: source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.cpp
===================================================================
--- source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.cpp
+++ source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.cpp
@@ -61,6 +61,12 @@
 }
 
 DWARFCompileUnit *SymbolFileDWARFDwo::GetCompileUnit() {
+  // A clang module is found via a skeleton CU, but is not a proper DWO.
+  // Clang modules have a .debug_info section instead of the *_dwo variant.
+  if (auto *section_list = m_obj_file->GetSectionList(false))
+    if (section_list->FindSectionByType(eSectionTypeDWARFDebugInfo, true))
+      return nullptr;
+
   // Only dwo files with 1 compile unit is supported
   if (GetNumCompileUnits() == 1)
     return DebugInfo()->GetCompileUnitAtIndex(0);