diff --git a/plugins/loudness_war_winner/src/lib.rs b/plugins/loudness_war_winner/src/lib.rs
index 572880bc..42d168bf 100644
--- a/plugins/loudness_war_winner/src/lib.rs
+++ b/plugins/loudness_war_winner/src/lib.rs
@@ -254,7 +254,7 @@ impl ClapPlugin for LoudnessWarWinner {
         ClapFeature::Limiter,
         ClapFeature::Distortion,
         ClapFeature::Utility,
-        ClapFeature::Custom("pain"),
+        ClapFeature::Custom("nih:pain"),
     ];
 }
 
diff --git a/plugins/spectral_compressor/src/lib.rs b/plugins/spectral_compressor/src/lib.rs
index 64d56c0c..8bb6abaa 100644
--- a/plugins/spectral_compressor/src/lib.rs
+++ b/plugins/spectral_compressor/src/lib.rs
@@ -594,8 +594,8 @@ impl ClapPlugin for SpectralCompressor {
         ClapFeature::Stereo,
         ClapFeature::PhaseVocoder,
         ClapFeature::Compressor,
-        ClapFeature::Custom("spectral"),
-        ClapFeature::Custom("sosig"),
+        ClapFeature::Custom("nih:spectral"),
+        ClapFeature::Custom("nih:sosig"),
     ];
 }