diff --git a/include/jemalloc/internal/arena_structs_b.h b/include/jemalloc/internal/arena_structs_b.h
index dbff7876..8a7d7a12 100644
--- a/include/jemalloc/internal/arena_structs_b.h
+++ b/include/jemalloc/internal/arena_structs_b.h
@@ -6,6 +6,7 @@
 #include "jemalloc/internal/nstime.h"
 #include "jemalloc/internal/ql.h"
 #include "jemalloc/internal/size_classes.h"
+#include "jemalloc/internal/smoothstep.h"
 #include "jemalloc/internal/ticker.h"
 
 /*
diff --git a/include/jemalloc/internal/jemalloc_internal_includes.h b/include/jemalloc/internal/jemalloc_internal_includes.h
index 3794c34c..8b650fbf 100644
--- a/include/jemalloc/internal/jemalloc_internal_includes.h
+++ b/include/jemalloc/internal/jemalloc_internal_includes.h
@@ -40,7 +40,6 @@
 /* TYPES */
 /******************************************************************************/
 
-#include "jemalloc/internal/smoothstep.h"
 #include "jemalloc/internal/stats_types.h"
 #include "jemalloc/internal/ctl_types.h"
 #include "jemalloc/internal/witness_types.h"