diff --git a/src/mingw.zig b/src/mingw.zig
index 11811a6adffec43e2dc3831c86d769cea8be30fc..06abb66ea45488f602a0c0655be4e3802eea60ec 100644
--- a/src/mingw.zig
+++ b/src/mingw.zig
@@ -274,6 +274,7 @@ fn add_cc_args(
 }
 
 pub fn buildImportLib(comp: *Compilation, lib_name: []const u8) !void {
+    if (build_options.only_core_functionality) @panic("building import libs not included in core functionality");
     var arena_allocator = std.heap.ArenaAllocator.init(comp.gpa);
     defer arena_allocator.deinit();
     const arena = arena_allocator.allocator();