diff --git a/src/engine/filent.c b/src/engine/filent.c
index d73e33dee..2cb000d4b 100644
--- a/src/engine/filent.c
+++ b/src/engine/filent.c
@@ -166,7 +166,7 @@ void file_dirscan( OBJECT * dir, scanback func, void * closure )
             path_build( &f, filename, 0 );
 
             filename_obj = object_new( filename->value );
-            path_add_key( filename_obj );
+            path_key__register_long_path( filename_obj );
             files = list_push_back( files, filename_obj );
             ff = file_info( filename_obj );
             ff->is_file = finfo->attrib & _A_SUBDIR ? 0 : 1;
diff --git a/src/engine/pathsys.h b/src/engine/pathsys.h
index d46b17099..c76dfed00 100644
--- a/src/engine/pathsys.h
+++ b/src/engine/pathsys.h
@@ -72,7 +72,7 @@ OBJECT * path_as_key( OBJECT * path );
  * long form. Avoids the need for some subsequent path_as_key() call to do a
  * potentially expensive short-->long path conversion.
  */
-void path_add_key( OBJECT * long_path );
+void path_key__register_long_path( OBJECT * long_path );
 
 #ifdef USE_PATHUNIX
 /* Returns a static pointer to the system dependent path to the temporary
diff --git a/src/engine/pathunix.c b/src/engine/pathunix.c
index 734048e9d..be7c6049d 100644
--- a/src/engine/pathunix.c
+++ b/src/engine/pathunix.c
@@ -471,7 +471,7 @@ static path_key_entry * path_key( OBJECT * const path,
 }
 
 
-void path_add_key( OBJECT * long_path )
+void path_key__register_long_path( OBJECT * long_path )
 {
     path_key( long_path, 1 );
 }
@@ -503,7 +503,7 @@ void path_done( void )
 #else  /* NT */
 
 
-void path_add_key( OBJECT * path )
+void path_key__register_long_path( OBJECT * path )
 {
 }