diff --git a/src/MagnumExternal/Optional/optional.hpp b/src/MagnumExternal/Optional/optional.hpp
index 6656bee81..07db190f5 100644
--- a/src/MagnumExternal/Optional/optional.hpp
+++ b/src/MagnumExternal/Optional/optional.hpp
@@ -149,6 +149,8 @@ template <class T> inline constexpr typename std::remove_reference<T>::type&& co
     __assert_fail(expr, file, line, "");
   # elif defined __native_client__
     __assert(expr, line, file); // WHY.
+  # elif defined __ANDROID__
+    __assert(file, line, expr);
   # elif defined __clang__ || defined __GNU_LIBRARY__
     __assert(expr, file, line);
   # elif defined __GNUC__