diff --git a/src/prof.c b/src/prof.c
index b33e9397..334466b1 100644
--- a/src/prof.c
+++ b/src/prof.c
@@ -310,7 +310,6 @@ prof_leave(tsd_t *tsd, prof_tdata_t *tdata) {
 }
 
 #ifdef JEMALLOC_PROF_LIBUNWIND
-JEMALLOC_ALIGNED(CACHELINE)
 void
 prof_backtrace(prof_bt_t *bt) {
 	int nframes;