diff --git a/src/ox/std/hashmap.hpp b/src/ox/std/hashmap.hpp
index 18332f42a..589e49fb1 100644
--- a/src/ox/std/hashmap.hpp
+++ b/src/ox/std/hashmap.hpp
@@ -41,7 +41,7 @@ class HashMap {
 
 		constexpr HashMap &operator=(const HashMap &other);
 
-		constexpr HashMap &operator=(HashMap &&other);
+		constexpr HashMap &operator=(HashMap &&other) noexcept;
 
 		/**
 		 * K is assumed to be a null terminated string.
@@ -135,7 +135,7 @@ constexpr HashMap<K, T> &HashMap<K, T>::operator=(const HashMap<K, T> &other) {
 }
 
 template<typename K, typename T>
-constexpr HashMap<K, T> &HashMap<K, T>::operator=(HashMap<K, T> &&other) {
+constexpr HashMap<K, T> &HashMap<K, T>::operator=(HashMap<K, T> &&other) noexcept {
 	if (this != &other) {
 		clear();
 		m_keys = std::move(other.m_keys);
diff --git a/src/ox/std/memory.hpp b/src/ox/std/memory.hpp
index 58a06929b..8457fbd28 100644
--- a/src/ox/std/memory.hpp
+++ b/src/ox/std/memory.hpp
@@ -222,13 +222,13 @@ class UniquePtr {
 		template<typename U>
 		constexpr UniquePtr &operator=(const UniquePtr<U> &other) = delete;
 
-		constexpr UniquePtr &operator=(UniquePtr<T> &&other) {
+		constexpr UniquePtr &operator=(UniquePtr<T> &&other) noexcept {
 			reset(std::move(other));
 			return *this;
 		}
 
 		template<typename U>
-		constexpr UniquePtr &operator=(UniquePtr<U> &&other) {
+		constexpr UniquePtr &operator=(UniquePtr<U> &&other) noexcept {
 			reset(std::move(other));
 			return *this;
 		}