diff --git a/src/hei_signature.hpp b/src/hei_signature.hpp
index 0cb0444..2e8ca41 100644
--- a/src/hei_signature.hpp
+++ b/src/hei_signature.hpp
@@ -51,9 +51,9 @@
 
   private:
     Chip iv_chip;               ///< Chip containing this register.
-    NodeId_t iv_id         = 0; ///< Node ID.
+    NodeId_t iv_id = 0;         ///< Node ID.
     Instance_t iv_instance = 0; ///< Instance of this register.
-    BitPosition_t iv_bit   = 0; ///< Target bit within this register.
+    BitPosition_t iv_bit = 0;   ///< Target bit within this register.
 
     /** Attention type reported by this bit. */
     AttentionType_t iv_attnType = ATTN_TYPE_CHIP_CS;