diff --git a/test/src/Cases.zig b/test/src/Cases.zig
index 48b1fd459d..b1f11129e4 100644
--- a/test/src/Cases.zig
+++ b/test/src/Cases.zig
@@ -1154,7 +1154,7 @@ fn runCases(self: *Cases, zig_exe_path: []const u8) !void {
     progress.terminal = null;
     defer root_node.end();
 
-    var zig_lib_directory = try introspect.findZigLibDir(self.gpa);
+    var zig_lib_directory = try introspect.findZigLibDirFromSelfExe(self.gpa, zig_exe_path);
     defer zig_lib_directory.handle.close();
     defer self.gpa.free(zig_lib_directory.path.?);