diff --git a/ui/persfilepath_opt.h b/ui/persfilepath_opt.h
index ac27f3bb76..00964f67cc 100644
--- a/ui/persfilepath_opt.h
+++ b/ui/persfilepath_opt.h
@@ -37,7 +37,7 @@ extern "C" {
  * process command line option that affects the paths of the directories
  * used for personal files (configuration, saved captures)
  */
-WS_DLL_PUBLIC gboolean persfilepath_opt(int opt, const char *optstr);
+extern gboolean persfilepath_opt(int opt, const char *optstr);
 
 #ifdef __cplusplus
 }