diff --git a/lib/tokenlist.cpp b/lib/tokenlist.cpp
index 5921621fed2..9c872432cb8 100644
--- a/lib/tokenlist.cpp
+++ b/lib/tokenlist.cpp
@@ -2002,7 +2002,7 @@ void TokenList::validateAst(bool print) const
             if (Token::simpleMatch(tok->previous(), "operator"))
                 continue;
             // Skip incomplete code
-            if (!tok->astOperand1() && !tok->astOperand2() && !tok->astParent())
+            if (!tok->astOperand1() && !tok->astOperand2() && !tok->astParent() && !(tok->str().size() == 2 && tok->str()[1] == '='))
                 continue;
             // Skip lambda assignment and/or initializer
             if (Token::Match(tok, "= {|^|["))
diff --git a/test/cli/fuzz-crash/crash-793c09dbb007b0e1a295f592813f40f8d6d449d1 b/test/cli/fuzz-crash/crash-793c09dbb007b0e1a295f592813f40f8d6d449d1
new file mode 100644
index 00000000000..706fe52b407
--- /dev/null
+++ b/test/cli/fuzz-crash/crash-793c09dbb007b0e1a295f592813f40f8d6d449d1
@@ -0,0 +1 @@
+enum{A=s(u)0&=s};