diff --git a/src/Compilation.zig b/src/Compilation.zig
index cab4ba5e1583a15232b5832a7e74805b9eda480b..d4d4228608178a120f86911b2698c116df4787b9 100644
--- a/src/Compilation.zig
+++ b/src/Compilation.zig
@@ -3381,7 +3381,7 @@ pub fn generateBuiltinZigSource(comp: *Compilation, allocator: *Allocator) Alloc
 
     if (comp.bin_file.options.is_test) {
         try buffer.appendSlice(
-            \\pub var test_functions: []TestFn = undefined; // overwritten later
+            \\pub var test_functions: []std.builtin.TestFn = undefined; // overwritten later
             \\
         );
         if (comp.test_evented_io) {