diff --git a/doc/langref/grammar.peg b/doc/langref/grammar.peg
index 46e6859b6fa40ae3e63bc849fabe55d4cd97e02a..83f75509cac2d5649a47ab3a506c4a24919b68b5 100644
--- a/doc/langref/grammar.peg
+++ b/doc/langref/grammar.peg
@@ -272,7 +272,7 @@ CompareOpTok
 BitwiseOp <- pre_op_white BitwiseOpTok post_op_white
            / !pre_op_white BitwiseOpTok !post_op_white
 BitwiseOpTok
-    <- AMPERSAND
+    <- AMPERSAND ![&]
      / CARET
      / PIPE
      / KEYWORD_orelse
diff --git a/lib/std/zig/parser_fuzz.zig b/lib/std/zig/parser_fuzz.zig
index 6086ed4d319c323c47718ea9a504c6419dae5499..c226dfe58dda7375d4407951161466ec7e8419ab 100644
--- a/lib/std/zig/parser_fuzz.zig
+++ b/lib/std/zig/parser_fuzz.zig
@@ -30,6 +30,12 @@ test "doc comment or division operator" {
     try checkAgainstOracle("0=0///\n0");
 }
 
+// Found using AFL++
+test "double ampersand" {
+    try checkAgainstOracle("0=0&&0"); // error
+    try checkAgainstOracle("test{&&0;}"); // ok
+}
+
 fn checkAgainstOracle(source: [:0]const u8) !void {
     var fba_buf: [1 << 18]u8 = undefined;
     var fba: std.heap.FixedBufferAllocator = .init(&fba_buf);
diff --git a/lib/std/zig/parser_generated_oracle.zig b/lib/std/zig/parser_generated_oracle.zig
index 69f23ec3139b3a0da3ff06a82c2b1d910fcf47b4..7be3e2e4a15d99b287f33d1553f10e1ec5fff176 100644
--- a/lib/std/zig/parser_generated_oracle.zig
+++ b/lib/std/zig/parser_generated_oracle.zig
@@ -1528,7 +1528,19 @@ const Parser = struct {
     pub fn parseBitwiseOpTok(p: *Parser) bool {
         return blk_0: {
             const pos_0 = p.i;
-            if (p.parseAMPERSAND()) break :blk_0 true;
+            if (p.parseAMPERSAND() and blk_1: {
+                const pos_1 = p.i;
+                const match_1 = (p.i < p.source.len and switch (p.source[p.i]) {
+                    '&'...'&',
+                    => blk_2: {
+                        p.i += 1;
+                        break :blk_2 true;
+                    },
+                    else => false,
+                });
+                p.i = pos_1;
+                break :blk_1 !match_1;
+            }) break :blk_0 true;
             p.i = pos_0;
             if (p.parseCARET()) break :blk_0 true;
             p.i = pos_0;