diff --git a/include/jemalloc/internal/pa.h b/include/jemalloc/internal/pa.h
index 0df2b4b3..ef140b3e 100644
--- a/include/jemalloc/internal/pa.h
+++ b/include/jemalloc/internal/pa.h
@@ -122,7 +122,8 @@ size_t pa_shard_extent_sn_next(pa_shard_t *shard);
 edata_t *pa_alloc(tsdn_t *tsdn, pa_shard_t *shard, size_t size,
     size_t alignment, bool slab, szind_t szind, bool *zero, size_t *mapped_add);
 /* Returns true on error, in which case nothing changed. */
-bool pa_expand(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata,
-    size_t new_usize, bool *zero, size_t *mapped_add);
+bool
+pa_expand(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata, size_t new_usize,
+    szind_t szind, bool slab, bool *zero, size_t *mapped_add);
 
 #endif /* JEMALLOC_INTERNAL_PA_H */
diff --git a/src/large.c b/src/large.c
index ff43a8d1..60b51d8c 100644
--- a/src/large.c
+++ b/src/large.c
@@ -115,8 +115,9 @@ large_ralloc_no_move_expand(tsdn_t *tsdn, edata_t *edata, size_t usize,
 	 */
 	bool is_zeroed_trail = zero;
 	size_t mapped_add;
+	szind_t szind = sz_size2index(usize);
 	bool err = pa_expand(tsdn, &arena->pa_shard, edata, usize,
-	    &is_zeroed_trail, &mapped_add);
+	    szind, /* slab */ false, &is_zeroed_trail, &mapped_add);
 	if (err) {
 		return true;
 	}
diff --git a/src/pa.c b/src/pa.c
index 7c3b568a..7fafa7e3 100644
--- a/src/pa.c
+++ b/src/pa.c
@@ -97,7 +97,7 @@ pa_alloc(tsdn_t *tsdn, pa_shard_t *shard, size_t size, size_t alignment,
 
 bool
 pa_expand(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata, size_t new_usize,
-    bool *zero, size_t *mapped_add) {
+    szind_t szind, bool slab, bool *zero, size_t *mapped_add) {
 	ehooks_t *ehooks = pa_shard_ehooks_get(shard);
 	size_t old_usize = edata_usize_get(edata);
 	size_t trail_size = new_usize - old_usize;
@@ -130,7 +130,6 @@ pa_expand(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata, size_t new_usize,
 		*mapped_add = 0;
 		return true;
 	}
-	szind_t szind = sz_size2index(new_usize);
-	emap_remap(tsdn, &emap_global, edata, szind, /* slab */ false);
+	emap_remap(tsdn, &emap_global, edata, szind, slab);
 	return false;
 }