diff --git a/src/basic/pidfd-util.c b/src/basic/pidfd-util.c
index 7bfe83d319..545d387613 100644
--- a/src/basic/pidfd-util.c
+++ b/src/basic/pidfd-util.c
@@ -15,7 +15,6 @@
 #include "stat-util.h"
 #include "stdio-util.h"
 #include "string-util.h"
-#include "unaligned.h"
 
 static thread_local int have_pidfs = -1;