diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp b/lldb/source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp
index 4da0d56fdcacb4..0c7170c0025e0b 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp
@@ -83,6 +83,10 @@ bool DebugNamesDWARFIndex::ProcessEntry(
   DWARFDIE die = dwarf.GetDIE(*ref);
   if (!die)
     return true;
+  // Clang erroneously emits index entries for declaration DIEs in case when the
+  // definition is in a type unit (llvm.org/pr77696). Weed those out.
+  if (die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0))
+    return true;
   return callback(die);
 }