diff --git a/gcc/cp/search.cc b/gcc/cp/search.cc
index 00c669effad44fda4a7283dab56101ef24aceeee..2b8210408fbb26b59aec346e351fe77176930fd0 100644
--- a/gcc/cp/search.cc
+++ b/gcc/cp/search.cc
@@ -1275,6 +1275,13 @@ lookup_field_fuzzy_info::fuzzy_lookup_field (tree type)
       if (is_lambda_ignored_entity (field))
 	continue;
 
+      /* Ignore special identifiers with space at the end like cdtor or
+	 conversion op identifiers.  */
+      if (TREE_CODE (DECL_NAME (field)) == IDENTIFIER_NODE)
+	if (unsigned int len = IDENTIFIER_LENGTH (DECL_NAME (field)))
+	  if (IDENTIFIER_POINTER (DECL_NAME (field))[len - 1] == ' ')
+	    continue;
+
       m_candidates.safe_push (DECL_NAME (field));
     }
 }
diff --git a/gcc/testsuite/g++.dg/spellcheck-pr104806.C b/gcc/testsuite/g++.dg/spellcheck-pr104806.C
new file mode 100644
index 0000000000000000000000000000000000000000..559e60191633c04f029c660e4d0883d5e9762770
--- /dev/null
+++ b/gcc/testsuite/g++.dg/spellcheck-pr104806.C
@@ -0,0 +1,5 @@
+// PR c++/104806
+
+struct S {};
+int main() { S s; s.__d; }	// { dg-bogus "'struct S' has no member named '__d'; did you mean '__\[a-z]* '" }
+				// { dg-error "'struct S' has no member named '__d'" "" { target *-*-* } .-1 }