diff --git a/atcoder/convolution.hpp b/atcoder/convolution.hpp
index ecfbc44..d206205 100644
--- a/atcoder/convolution.hpp
+++ b/atcoder/convolution.hpp
@@ -258,7 +258,7 @@ std::vector<T> convolution(const std::vector<T>& a, const std::vector<T>& b) {
     for (int i = 0; i < m; i++) {
         b2[i] = mint(b[i]);
     }
-    auto c2 = convolution(move(a2), move(b2));
+    auto c2 = convolution(std::move(a2), std::move(b2));
     std::vector<T> c(n + m - 1);
     for (int i = 0; i < n + m - 1; i++) {
         c[i] = c2[i].val();