diff --git a/src/main/scala/regmapper/RegMapper.scala b/src/main/scala/regmapper/RegMapper.scala
index f456b899..57bf7f82 100644
--- a/src/main/scala/regmapper/RegMapper.scala
+++ b/src/main/scala/regmapper/RegMapper.scala
@@ -31,7 +31,7 @@ object RegMapper
   // Create a generic register-based device
   def apply(bytes: Int, concurrency: Int, undefZero: Boolean, in: DecoupledIO[RegMapperInput], mapping: RegField.Map*) = {
     val bytemap = mapping.toList
-    // Don't be an asshole...
+    // Negative addresses are bad
     bytemap.foreach { byte => require (byte._1 >= 0) }
 
     // Transform all fields into bit offsets Seq[(bit, field)]