diff --git a/src/value.zig b/src/value.zig
index 613c3d9ca6da1cfcf5e74d94bd896e3985703eb0..b18ba3d83422c2b8f48a8ba0eb54bb897633ffb3 100644
--- a/src/value.zig
+++ b/src/value.zig
@@ -2208,6 +2208,7 @@ pub const Value = extern union {
                 }
                 return true;
             },
+            .empty_array => return true,
             .str_lit => {
                 const str_lit = lhs.castTag(.str_lit).?.data;
                 const bytes = mod.string_literal_bytes.items[str_lit.index..][0..str_lit.len];
diff --git a/test/behavior.zig b/test/behavior.zig
index 34783ce2e169ab53627d9fbbfbe6b02e407384ad..bdc3f30ede13668edfd841bf30e1420745546d35 100644
--- a/test/behavior.zig
+++ b/test/behavior.zig
@@ -142,6 +142,7 @@ test {
     _ = @import("behavior/bugs/13714.zig");
     _ = @import("behavior/bugs/13785.zig");
     _ = @import("behavior/bugs/14854.zig");
+    _ = @import("behavior/bugs/15778.zig");
     _ = @import("behavior/byteswap.zig");
     _ = @import("behavior/byval_arg_var.zig");
     _ = @import("behavior/call.zig");
diff --git a/test/behavior/bugs/15778.zig b/test/behavior/bugs/15778.zig
new file mode 100644
index 0000000000000000000000000000000000000000..86b9fce7b62d606a463b371f309b3206959900ba
--- /dev/null
+++ b/test/behavior/bugs/15778.zig
@@ -0,0 +1,25 @@
+const builtin = @import("builtin");
+
+test {
+    if (builtin.zig_backend == .stage2_x86) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest; // TODO
+    const a = @Vector(0, i32){};
+    const b = @Vector(0, i32){};
+    _ = a + b;
+}
+
+test {
+    if (builtin.zig_backend == .stage2_x86) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest; // TODO
+    const a = @Vector(0, f32){};
+    const b = @Vector(0, f32){};
+    _ = a - b;
+}