diff --git a/src/compression.rs b/src/compression.rs
index c2e8ce44..18da9b0b 100644
--- a/src/compression.rs
+++ b/src/compression.rs
@@ -121,27 +121,6 @@ impl CompressionMethod {
             CompressionMethod::Unsupported(v) => v,
         }
     }
-
-    pub fn supported_methods() -> &'static [CompressionMethod] {
-        static METHODS: [CompressionMethod; 4] = [
-            CompressionMethod::Stored,
-            //
-            #[cfg(any(
-                feature = "deflate",
-                feature = "deflate-miniz",
-                feature = "deflate-zlib"
-            ))]
-            CompressionMethod::Deflated,
-            //
-            #[cfg(feature = "bzip2")]
-            CompressionMethod::Bzip2,
-            //
-            #[cfg(feature = "zstd")]
-            CompressionMethod::Zstd,
-        ];
-
-        &METHODS
-    }
 }
 
 impl fmt::Display for CompressionMethod {
@@ -151,9 +130,24 @@ impl fmt::Display for CompressionMethod {
     }
 }
 
+/// The compression methods which have been implemented.
+pub const SUPPORTED_METHODS: &[CompressionMethod] = &[
+        CompressionMethod::Stored,
+        #[cfg(any(
+            feature = "deflate",
+            feature = "deflate-miniz",
+            feature = "deflate-zlib"
+        ))]
+        CompressionMethod::Deflated,
+        #[cfg(feature = "bzip2")]
+        CompressionMethod::Bzip2,
+        #[cfg(feature = "zstd")]
+        CompressionMethod::Zstd,
+];
+
 #[cfg(test)]
 mod test {
-    use super::CompressionMethod;
+    use super::{CompressionMethod, SUPPORTED_METHODS};
 
     #[test]
     fn from_eq_to() {
@@ -166,22 +160,6 @@ mod test {
         }
     }
 
-    fn methods() -> Vec<CompressionMethod> {
-        vec![
-            CompressionMethod::Stored,
-            #[cfg(any(
-                feature = "deflate",
-                feature = "deflate-miniz",
-                feature = "deflate-zlib"
-            ))]
-            CompressionMethod::Deflated,
-            #[cfg(feature = "bzip2")]
-            CompressionMethod::Bzip2,
-            #[cfg(feature = "zstd")]
-            CompressionMethod::Zstd,
-        ]
-    }
-
     #[test]
     fn to_eq_from() {
         fn check_match(method: CompressionMethod) {
@@ -194,7 +172,7 @@ mod test {
             assert_eq!(to, back);
         }
 
-        for method in methods() {
+        for &method in SUPPORTED_METHODS {
             check_match(method);
         }
     }
@@ -207,7 +185,7 @@ mod test {
             assert_eq!(debug_str, display_str);
         }
 
-        for method in methods() {
+        for &method in SUPPORTED_METHODS {
             check_match(method);
         }
     }
diff --git a/src/lib.rs b/src/lib.rs
index 3b39ab4f..f2b8cf7b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -5,7 +5,7 @@
 
 #![warn(missing_docs)]
 
-pub use crate::compression::CompressionMethod;
+pub use crate::compression::{CompressionMethod, SUPPORTED_METHODS};
 pub use crate::read::ZipArchive;
 pub use crate::types::DateTime;
 pub use crate::write::ZipWriter;