diff --git a/app/node/block/block.cpp b/app/node/block/block.cpp
index 68ee09863..c505a80a2 100644
--- a/app/node/block/block.cpp
+++ b/app/node/block/block.cpp
@@ -45,6 +45,8 @@ Block::Block() :
   SetInputProperty(kLengthInput, QStringLiteral("viewlock"), true);
   IgnoreHashingFrom(kLengthInput);
 
+  SetInputFlags(kEnabledInput, InputFlags(GetInputFlags(kEnabledInput) | kInputFlagNotConnectable | kInputFlagNotKeyframable));
+
   SetFlags(kDontShowInParamView);
 }
 
diff --git a/app/node/block/subtitle/subtitle.cpp b/app/node/block/subtitle/subtitle.cpp
index 24b628178..6231fc7d2 100644
--- a/app/node/block/subtitle/subtitle.cpp
+++ b/app/node/block/subtitle/subtitle.cpp
@@ -30,6 +30,13 @@ SubtitleBlock::SubtitleBlock()
 {
   AddInput(kTextIn, NodeValue::kText, InputFlags(kInputFlagNotConnectable | kInputFlagNotKeyframable));
 
+  SetInputFlags(kBufferIn, InputFlags(GetInputFlags(kBufferIn) | kInputFlagHidden));
+  SetInputFlags(kLengthInput, InputFlags(GetInputFlags(kLengthInput) | kInputFlagHidden));
+  SetInputFlags(kMediaInInput, InputFlags(GetInputFlags(kMediaInInput) | kInputFlagHidden));
+  SetInputFlags(kSpeedInput, InputFlags(GetInputFlags(kSpeedInput) | kInputFlagHidden));
+  SetInputFlags(kReverseInput, InputFlags(GetInputFlags(kReverseInput) | kInputFlagHidden));
+  SetInputFlags(kMaintainAudioPitchInput, InputFlags(GetInputFlags(kMaintainAudioPitchInput) | kInputFlagHidden));
+
   // Undo block flag that hides in param view
   SetFlags(GetFlags() & ~kDontShowInParamView);
 }