diff --git a/meson.build b/meson.build
index 61e6e736..e333c317 100644
--- a/meson.build
+++ b/meson.build
@@ -57,7 +57,7 @@ if get_option('warning_level') != '0'
   warns = [ 'cast-function-type', 'ignored-qualifiers', 'missing-parameter-type',
             'nonnull', 'shadow', 'no-type-limits', 'old-style-declaration', 'override-init',
             'sign-compare', 'type-limits', 'uninitialized', 'shift-negative-value',
-            'unused-but-set-parameter', 'unused-parameter', 'implicit-fallthrough',
+            'unused-but-set-parameter', 'unused-parameter', 'implicit-fallthrough=2',
             'no-unknown-warning-option', 'no-missing-braces', 'conversion', 'empty-body' ]
   foreach w : warns
           if cc.has_argument('-W'+w)