diff --git a/include/xsimd/arch/xsimd_wasm.hpp b/include/xsimd/arch/xsimd_wasm.hpp
index 93533d1dd..8f3ba8b65 100644
--- a/include/xsimd/arch/xsimd_wasm.hpp
+++ b/include/xsimd/arch/xsimd_wasm.hpp
@@ -491,6 +491,15 @@ namespace xsimd
                 v128_t f = wasm_f64x2_sub(xH, wasm_f64x2_splat(442726361368656609280.)); //  3*2^67 + 2^52
                 return wasm_f64x2_add(f, xL);
             }
+
+            template <class A>
+            inline batch<int32_t, A> fast_cast(batch<float, A> const& self, batch<int32_t, A> const&, requires_arch<wasm>) noexcept
+            {
+                return batch<int32_t, A>(static_cast<int32_t>(wasm_f32x4_extract_lane(self, 0)),
+                    static_cast<int32_t>(wasm_f32x4_extract_lane(self, 1)),
+                    static_cast<int32_t>(wasm_f32x4_extract_lane(self, 2)),
+                    static_cast<int32_t>(wasm_f32x4_extract_lane(self, 3)));
+            }
         }
 
         // floor