diff --git a/stdlib/src/compression.rs b/stdlib/src/compression.rs
index 9fa7e3e02d..7f4e3432ea 100644
--- a/stdlib/src/compression.rs
+++ b/stdlib/src/compression.rs
@@ -204,7 +204,6 @@ pub trait CompressFlushKind: Copy {
 }
 
 pub trait CompressStatusKind: Copy {
-    const OK: Self;
     const EOF: Self;
 
     fn to_usize(self) -> usize;
diff --git a/stdlib/src/lzma.rs b/stdlib/src/lzma.rs
index c2dd912577..885af30bc6 100644
--- a/stdlib/src/lzma.rs
+++ b/stdlib/src/lzma.rs
@@ -214,7 +214,6 @@ mod _lzma {
     }
 
     impl CompressStatusKind for Status {
-        const OK: Self = Status::Ok;
         const EOF: Self = Status::StreamEnd;
 
         fn to_usize(self) -> usize {
diff --git a/stdlib/src/zlib.rs b/stdlib/src/zlib.rs
index cf5669145b..6034b4a2c5 100644
--- a/stdlib/src/zlib.rs
+++ b/stdlib/src/zlib.rs
@@ -422,7 +422,6 @@ mod zlib {
     }
 
     impl CompressStatusKind for Status {
-        const OK: Self = Self::Ok;
         const EOF: Self = Self::StreamEnd;
 
         fn to_usize(self) -> usize {