diff --git a/dlls/kernel/volume.c b/dlls/kernel/volume.c
index 0a6a23e212..e4c17bd4c8 100644
--- a/dlls/kernel/volume.c
+++ b/dlls/kernel/volume.c
@@ -804,6 +804,8 @@ BOOL WINAPI DefineDosDeviceW( DWORD flags, LPCWSTR devname, LPCWSTR targetpath )
     BOOL ret = FALSE;
     char *path = NULL, *target, *p;
 
+    TRACE("%lx, %s, %s\n", flags, debugstr_w(devname), debugstr_w(targetpath));
+
     if (!(flags & DDD_REMOVE_DEFINITION))
     {
         if (!(flags & DDD_RAW_TARGET_PATH))