diff --git a/src/gui_w32.c b/src/gui_w32.c
index 78f252a..0debae9 100644
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -7127,8 +7127,11 @@
 
 	    GetDlgItemTextW(hwnd, DLG_NONBUTTON_CONTROL + 2, wp, IOSIZE);
 	    p = utf16_to_enc(wp, NULL);
-	    vim_strncpy(s_textfield, p, IOSIZE);
-	    vim_free(p);
+	    if (p != NULL)
+	    {
+		vim_strncpy(s_textfield, p, IOSIZE);
+		vim_free(p);
+	    }
 	    vim_free(wp);
 	}