diff --git a/vulkan-rs/src/render_target/sub_pass.rs b/vulkan-rs/src/render_target/sub_pass.rs
index 38c1095..f160bf4 100644
--- a/vulkan-rs/src/render_target/sub_pass.rs
+++ b/vulkan-rs/src/render_target/sub_pass.rs
@@ -62,7 +62,11 @@ impl CustomTarget {
         height: u32,
         sample_count: VkSampleCountFlags,
     ) -> Result<AttachmentInfo> {
-        let clear_operation = SubPassBuilder::clear_op(self.clear_on_load);
+        let clear_operation = SubPassBuilder::clear_op(if self.use_as_input {
+            false
+        } else {
+            self.clear_on_load
+        });
         let store_operation = SubPassBuilder::store_op(self.store_on_save);
 
         // set clear values