diff --git a/app/node/block/clip/clip.cpp b/app/node/block/clip/clip.cpp
index 6517757c8..dcb98bfab 100644
--- a/app/node/block/clip/clip.cpp
+++ b/app/node/block/clip/clip.cpp
@@ -23,6 +23,7 @@
 ClipBlock::ClipBlock()
 {
   texture_input_ = new NodeInput("buffer_in", NodeInput::kBuffer);
+  texture_input_->set_is_keyframable(false);
   AddInput(texture_input_);
 }
 
diff --git a/app/node/block/transition/transition.cpp b/app/node/block/transition/transition.cpp
index eec961f78..1e83cb780 100644
--- a/app/node/block/transition/transition.cpp
+++ b/app/node/block/transition/transition.cpp
@@ -3,9 +3,11 @@
 TransitionBlock::TransitionBlock()
 {
   out_block_input_ = new NodeInput("out_block_in", NodeParam::kBuffer);
+  out_block_input_->set_is_keyframable(false);
   AddInput(out_block_input_);
 
   in_block_input_ = new NodeInput("in_block_in", NodeParam::kBuffer);
+  in_block_input_->set_is_keyframable(false);
   AddInput(in_block_input_);
 
   // A block's length must be greater than 0