diff --git a/meson.build b/meson.build
index 1e571f5..2db7299 100644
--- a/meson.build
+++ b/meson.build
@@ -13,6 +13,8 @@
 
 # hide/enable some warnings
 warning_flags = [
+  '-Wshadow',
+  '-Wmissing-prototypes',
   '-Wwrite-strings',
   '-Wno-unused-parameter',
   '-Wno-address-of-packed-member',