diff --git a/test/stage1/behavior.zig b/test/stage1/behavior.zig
index 9f7c484fc5..f99de3b149 100644
--- a/test/stage1/behavior.zig
+++ b/test/stage1/behavior.zig
@@ -32,6 +32,7 @@ comptime {
     _ = @import("behavior/bugs/2346.zig");
     _ = @import("behavior/bugs/2578.zig");
     _ = @import("behavior/bugs/2692.zig");
+    _ = @import("behavior/bugs/2889.zig");
     _ = @import("behavior/bugs/3007.zig");
     _ = @import("behavior/bugs/3046.zig");
     _ = @import("behavior/bugs/3112.zig");
diff --git a/test/stage1/behavior/bugs/2889.zig b/test/stage1/behavior/bugs/2889.zig
new file mode 100644
index 0000000000..4991b56510
--- /dev/null
+++ b/test/stage1/behavior/bugs/2889.zig
@@ -0,0 +1,31 @@
+const std = @import("std");
+
+const source = "A-";
+
+fn parseNote() ?i32 {
+    const letter = source[0];
+    const modifier = source[1];
+
+    const semitone = blk: {
+        if (letter == 'C' and modifier == '-') break :blk @as(i32, 0);
+        if (letter == 'C' and modifier == '#') break :blk @as(i32, 1);
+        if (letter == 'D' and modifier == '-') break :blk @as(i32, 2);
+        if (letter == 'D' and modifier == '#') break :blk @as(i32, 3);
+        if (letter == 'E' and modifier == '-') break :blk @as(i32, 4);
+        if (letter == 'F' and modifier == '-') break :blk @as(i32, 5);
+        if (letter == 'F' and modifier == '#') break :blk @as(i32, 6);
+        if (letter == 'G' and modifier == '-') break :blk @as(i32, 7);
+        if (letter == 'G' and modifier == '#') break :blk @as(i32, 8);
+        if (letter == 'A' and modifier == '-') break :blk @as(i32, 9);
+        if (letter == 'A' and modifier == '#') break :blk @as(i32, 10);
+        if (letter == 'B' and modifier == '-') break :blk @as(i32, 11);
+        return null;
+    };
+
+    return semitone;
+}
+
+test "fixed" {
+    const result = parseNote();
+    std.testing.expect(result.? == 9);
+}