diff --git a/src/scalar.rs b/src/scalar.rs
index d365d25f1..95493c247 100644
--- a/src/scalar.rs
+++ b/src/scalar.rs
@@ -243,7 +243,7 @@ impl Scalar {
     /// This function is intended for applications like X25519 which
     /// require specific bit-patterns when performing scalar
     /// multiplication.
-    pub fn from_bits(bytes: [u8; 32]) -> Scalar {
+    pub const fn from_bits(bytes: [u8; 32]) -> Scalar {
         let mut s = Scalar{bytes};
         // Ensure that s < 2^255 by masking the high bit
         s.bytes[31] &= 0b0111_1111;