diff --git a/include/ec_os_mingw.h b/include/ec_os_mingw.h
index 51b8ca9..2741e39 100644
--- a/include/ec_os_mingw.h
+++ b/include/ec_os_mingw.h
@@ -163,7 +163,7 @@ EC_API_EXTERN const char *ec_win_get_ec_dir (void);
  */
 #if !defined(HAVE_DLOPEN)
    #define RTLD_NOW 0
-   #define LTDL_SHLIB_EXT       "*.dll"
+   #define LT_MODULE_EXT       ".dll"
 
    #define dlopen(dll,flg)      ec_win_dlopen (dll, flg)
    #define lt_dlopen(dll)       ec_win_dlopen (dll, 0)
diff --git a/src/ec_plugins.c b/src/ec_plugins.c
index 88c3c46..ffe16c5 100644
--- a/src/ec_plugins.c
+++ b/src/ec_plugins.c
@@ -131,7 +131,7 @@ int plugin_filter(struct dirent *d)
 int plugin_filter(const struct dirent *d)
 #endif
 {
-   if ( match_pattern(d->d_name, PLUGIN_PATTERN LTDL_SHLIB_EXT) )
+   if ( match_pattern(d->d_name, PLUGIN_PATTERN LT_MODULE_EXT) )
       return 1;
 
    return 0;