diff --git a/meson.build b/meson.build
index f376d030fd..b038d6df82 100644
--- a/meson.build
+++ b/meson.build
@@ -271,6 +271,7 @@ foreach arg : ['-Wextra',
                '-Wstrict-prototypes',
                '-Wredundant-decls',
                '-Wmissing-noreturn',
+               '-Wimplicit-fallthrough=3',
                '-Wshadow',
                '-Wendif-labels',
                '-Wstrict-aliasing=2',