diff --git a/libs/pbd/pbd/abstract_ui.inc.cc b/libs/pbd/pbd/abstract_ui.inc.cc
index dbc0061060..aac0e00efb 100644
--- a/libs/pbd/pbd/abstract_ui.inc.cc
+++ b/libs/pbd/pbd/abstract_ui.inc.cc
@@ -36,7 +36,7 @@
                              // searched and sorted. Thus, when instantiating the container, MSVC complains
                              // if the type of object being contained has no appropriate comparison operators
                              // defined (specifically, if operators '<' and '==' are undefined). This seems
-                             // to be the case with ptw32 'pthread_t' which is a simple struct.
+                             // to be the case with 'ptw32_handle_t' which is a simple struct.
 DECLARE_DEFAULT_COMPARISONS(ptw32_handle_t)
 #endif