diff --git a/libnixf/lib/Parse/meson.build b/libnixf/lib/Parse/meson.build
index 04ef0a5d1..0bc46afba 100644
--- a/libnixf/lib/Parse/meson.build
+++ b/libnixf/lib/Parse/meson.build
@@ -7,7 +7,8 @@ libnixfParse = library('nixfParse',
                        'Parser.cpp',
                        include_directories: libnixfParse_inc,
                        dependencies: libnixfParse_deps,
-                       install: true
+                       install: true,
+                       cpp_args: [ '-Werror=implicit-fallthrough' ]
 )
 
 pkgconfig.generate(name: 'libnixfParse',
diff --git a/meson.build b/meson.build
index 33f74cfbe..8265dd861 100644
--- a/meson.build
+++ b/meson.build
@@ -25,8 +25,7 @@ cpp = meson.get_compiler('cpp')
 add_project_arguments([
   '-I' + meson.project_build_root(),
   cpp.get_supported_arguments(
-     '-Werror=documentation',
-     '-Werror=implicit-fallthrough'
+     '-Werror=documentation'
   ),
 ], language: 'cpp')