diff --git a/src/translate_c.zig b/src/translate_c.zig
index 219635859c..7cc843e17c 100644
--- a/src/translate_c.zig
+++ b/src/translate_c.zig
@@ -5651,13 +5651,14 @@ const ParseError = Error || error{ParseError};
 
 fn parseCExpr(c: *Context, m: *MacroCtx, scope: *Scope) ParseError!Node {
     // TODO parseCAssignExpr here
-    const node = try parseCCondExpr(c, m, scope);
+    var block_scope = try Scope.Block.init(c, scope, true);
+    defer block_scope.deinit();
+
+    const node = try parseCCondExpr(c, m, &block_scope.base);
     if (m.next().? != .Comma) {
         m.i -= 1;
         return node;
     }
-    var block_scope = try Scope.Block.init(c, scope, true);
-    defer block_scope.deinit();
 
     var last = node;
     while (true) {
diff --git a/test/behavior/translate_c_macros.h b/test/behavior/translate_c_macros.h
index 439577fecc..5d4cf3473d 100644
--- a/test/behavior/translate_c_macros.h
+++ b/test/behavior/translate_c_macros.h
@@ -40,6 +40,7 @@ union U {
 #define CAST_OR_CALL_WITH_PARENS(type_or_fn, val) ((type_or_fn)(val))
 
 #define NESTED_COMMA_OPERATOR (1, (2, 3))
+#define NESTED_COMMA_OPERATOR_LHS (1, 2), 3
 
 #include <stdint.h>
 #if !defined(__UINTPTR_MAX__)
diff --git a/test/behavior/translate_c_macros.zig b/test/behavior/translate_c_macros.zig
index 04d217f488..deda45df91 100644
--- a/test/behavior/translate_c_macros.zig
+++ b/test/behavior/translate_c_macros.zig
@@ -100,6 +100,7 @@ test "nested comma operator" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
 
     try expectEqual(@as(c_int, 3), h.NESTED_COMMA_OPERATOR);
+    try expectEqual(@as(c_int, 3), h.NESTED_COMMA_OPERATOR_LHS);
 }
 
 test "cast functions" {
diff --git a/test/translate_c.zig b/test/translate_c.zig
index d6b6bcbbba..81d1308c95 100644
--- a/test/translate_c.zig
+++ b/test/translate_c.zig
@@ -499,20 +499,20 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
         \\int baz(int x, int y) { return 0; }
         \\#define bar(x) (&x, +3, 4 == 4, 5 * 6, baz(1, 2), 2 % 2, baz(1,2))
     , &[_][]const u8{
-        \\pub const foo = blk: {
+        \\pub const foo = blk_1: {
         \\    _ = @TypeOf(foo);
-        \\    break :blk bar;
+        \\    break :blk_1 bar;
         \\};
         ,
         \\pub inline fn bar(x: anytype) @TypeOf(baz(@as(c_int, 1), @as(c_int, 2))) {
-        \\    return blk: {
+        \\    return blk_1: {
         \\        _ = &x;
         \\        _ = @as(c_int, 3);
         \\        _ = @as(c_int, 4) == @as(c_int, 4);
         \\        _ = @as(c_int, 5) * @as(c_int, 6);
         \\        _ = baz(@as(c_int, 1), @as(c_int, 2));
         \\        _ = @as(c_int, 2) % @as(c_int, 2);
-        \\        break :blk baz(@as(c_int, 1), @as(c_int, 2));
+        \\        break :blk_1 baz(@as(c_int, 1), @as(c_int, 2));
         \\    };
         \\}
     });