diff --git a/kernel/hashlib.h b/kernel/hashlib.h
index f66baa4297d..3be33ebd9ea 100644
--- a/kernel/hashlib.h
+++ b/kernel/hashlib.h
@@ -54,7 +54,7 @@ const int hashtable_size_trigger = 2;
 const int hashtable_size_factor = 3;
 
 namespace legacy {
-	inline uint32_t mkhash_add(uint32_t a, uint32_t b) {
+	inline uint32_t djb2_add(uint32_t a, uint32_t b) {
 		return ((a << 5) + a) + b;
 	}
 };
diff --git a/kernel/rtlil.h b/kernel/rtlil.h
index a477b4cf932..78347b1b760 100644
--- a/kernel/rtlil.h
+++ b/kernel/rtlil.h
@@ -1857,7 +1857,7 @@ inline Hasher RTLIL::SigBit::hash_eat(Hasher h) const {
 inline Hasher RTLIL::SigBit::hash_top() const {
 	Hasher h;
 	if (wire) {
-		h.force(hashlib::legacy::mkhash_add(wire->name.index_, offset));
+		h.force(hashlib::legacy::djb2_add(wire->name.index_, offset));
 		return h;
 	}
 	h.force(data);