diff --git a/.gitignore b/.gitignore
index 7876dc6..8e08448 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 \#*
 .\#*
 /build/
+.idea
+cmake-*
\ No newline at end of file
diff --git a/include/tl/optional.hpp b/include/tl/optional.hpp
index 9b13b7c..37b774a 100644
--- a/include/tl/optional.hpp
+++ b/include/tl/optional.hpp
@@ -452,7 +452,8 @@ struct optional_copy_base<T, false> : optional_operations_base<T> {
   using optional_operations_base<T>::optional_operations_base;
 
   optional_copy_base() = default;
-  optional_copy_base(const optional_copy_base &rhs) {
+  optional_copy_base(const optional_copy_base &rhs)
+  : optional_operations_base<T>() {
     if (rhs.has_value()) {
       this->construct(rhs.get());
     } else {