diff --git a/Cargo.toml b/Cargo.toml
index 79d948ae..7cda4520 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -60,11 +60,11 @@ base64 = "0.13"
 # Used for generating mnemonics
 getrandom = "0.2"
 
+# Used for the hot signer
+bip39 = "2.0"
+
 # Additional entropy for generating mnemonics
 [target.'cfg(target_arch = "x86")'.dependencies]
 rdrand = "0.8"
 [target.'cfg(target_arch = "x86_64")'.dependencies]
 rdrand = "0.8"
-
-# Used for the hot signer
-bip39 = "2.0"
diff --git a/src/random.rs b/src/random.rs
index b433ac2a..700cc402 100644
--- a/src/random.rs
+++ b/src/random.rs
@@ -41,11 +41,6 @@ fn cpu_randomness() -> Result<Option<[u8; 32]>, RandomnessError> {
     }
 }
 
-#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
-fn hardware_randomness() -> Result<Option<[u8; 32]>, RandomnessError> {
-    Ok(None)
-}
-
 // OS-generated randomness. See https://docs.rs/getrandom/latest/getrandom/#supported-targets
 // (basically this calls `getrandom()` or polls `/dev/urandom` on Linux, `BCryptGenRandom` on
 // Windows, and `getentropy()` / `/dev/random` on Mac.
@@ -82,9 +77,11 @@ fn additional_data() -> Result<[u8; 32], RandomnessError> {
 pub fn random_bytes() -> Result<[u8; 32], RandomnessError> {
     let mut engine = sha256::HashEngine::default();
 
+    #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
     if let Some(bytes) = cpu_randomness()? {
         engine.input(&bytes);
     }
+
     engine.input(&system_randomness()?);
     engine.input(&additional_data()?);
     // TODO: add more sources of randomness