diff --git a/src/gallium/meson.build b/src/gallium/meson.build
index 1f81fcf1fd5..5a5a8d2f0a6 100644
--- a/src/gallium/meson.build
+++ b/src/gallium/meson.build
@@ -175,7 +175,7 @@ if with_dri
   subdir('frontends/dri')
   subdir('targets/dri')
 endif
-if with_osmesa == 'gallium'
+if with_osmesa.contains('gallium')
   subdir('frontends/osmesa')
   subdir('targets/osmesa')
 endif