diff --git a/libs/ui/source/rich_image_view.cpp b/libs/ui/source/rich_image_view.cpp
index 67eb4758..cdbbbb46 100644
--- a/libs/ui/source/rich_image_view.cpp
+++ b/libs/ui/source/rich_image_view.cpp
@@ -183,7 +183,9 @@ namespace psemek::ui
 
 	void rich_image_view::post_region_changed()
 	{
-		auto weak_self = std::weak_ptr{std::dynamic_pointer_cast<rich_image_view>(shared_from_this())};
+		// Clang-12.0.0 doesn't have deduction guides for weak_ptr
+		auto self = std::dynamic_pointer_cast<rich_image_view>(shared_from_this());
+		auto weak_self = std::weak_ptr<rich_image_view>{self};
 		post([weak_self]{
 			auto self = weak_self.lock();
 			if (!self) return;