diff --git a/core/src/pow/mod.rs b/core/src/pow/mod.rs
index 97f8f3ad6..596dfdaa1 100644
--- a/core/src/pow/mod.rs
+++ b/core/src/pow/mod.rs
@@ -141,12 +141,12 @@ mod test {
 		b.header.pow.nonce = 485;
 		pow_size(
 			&mut b.header,
-			Difficulty::one(),
+			Difficulty::min(),
 			global::proofsize(),
 			global::min_edge_bits(),
 		).unwrap();
 		assert!(b.header.pow.nonce != 310);
-		assert!(b.header.pow.to_difficulty() >= Difficulty::one());
+		assert!(b.header.pow.to_difficulty() >= Difficulty::min());
 		assert!(verify_size(&b.header, global::min_edge_bits()).is_ok());
 	}
 }
diff --git a/core/src/pow/types.rs b/core/src/pow/types.rs
index b4fff5b60..57d4b220b 100644
--- a/core/src/pow/types.rs
+++ b/core/src/pow/types.rs
@@ -64,12 +64,6 @@ impl Difficulty {
 		Difficulty { num: 0 }
 	}
 
-	/// Difficulty of one, which is the minimum difficulty
-	/// (when the hash equals the max target)
-	pub fn one() -> Difficulty {
-		Difficulty { num: 1 }
-	}
-
 	/// Difficulty of MIN_DIFFICULTY
 	pub fn min() -> Difficulty {
 		Difficulty { num: MIN_DIFFICULTY }