diff --git a/src/safe_op.hpp b/src/safe_op.hpp
index 8f00d83c7f..9ede2e70de 100644
--- a/src/safe_op.hpp
+++ b/src/safe_op.hpp
@@ -183,11 +183,13 @@ T add(T summand_1, T summand_2) {
  *          when `num == std::numeric_limits<T>::min()`.
  */
 template <typename T>
-std::enable_if_t<std::is_signed_v<T>, T> abs(T num) noexcept {
-  if (num == std::numeric_limits<T>::min()) {
-    return std::numeric_limits<T>::max();
+T abs(T num) noexcept {
+  if constexpr (std::is_signed_v<T>) {
+    if (num == std::numeric_limits<T>::min())
+      return std::numeric_limits<T>::max();
+    return num < 0 ? -num : num;
   }
-  return num < 0 ? -num : num;
+  return std::abs(num);
 }
 
 }  // namespace Safe