1 files changed, 0 insertions, 2 deletions

diff --git a/include/zix/sem.h b/include/zix/sem.h
index eeecfb1..8aa205e 100644
--- a/include/zix/sem.h
+++ b/include/zix/sem.h
@@ -25,8 +25,6 @@ ZIX_BEGIN_DECLS
    @{
 */
 
-struct ZixSemImpl;
-
 /**
    A counting semaphore.