1 files changed, 1 insertions, 1 deletions

diff --git a/src/conf_post.h b/src/conf_post.h
index 5f6cf0eca37..14af38ce70b 100644
--- a/src/conf_post.h
+++ b/src/conf_post.h
@@ -253,7 +253,7 @@ extern void _DebPrint (const char *fmt, ...);
 #if defined lint
 # define assume(cond) ((cond) ? (void) 0 : abort ())
 #elif (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) || __GNUC__ > 4
-# define assume(cond) ((x) || (__builtin_unreachable(), 0))
+# define assume(cond) ((cond) || (__builtin_unreachable(), 0))
 #elif defined __MSC_VER
 # define assume(cond) __assume ((cond))
 #else