diff --git a/include/jemalloc/internal/arena_inlines_b.h b/include/jemalloc/internal/arena_inlines_b.h
index 8c76e0b0..4264f4b3 100644
--- a/include/jemalloc/internal/arena_inlines_b.h
+++ b/include/jemalloc/internal/arena_inlines_b.h
@@ -1,6 +1,8 @@
 #ifndef JEMALLOC_INTERNAL_ARENA_INLINES_B_H
 #define JEMALLOC_INTERNAL_ARENA_INLINES_B_H
 
+#include "jemalloc/internal/jemalloc_internal_types.h"
+
 #ifndef JEMALLOC_ENABLE_INLINE
 szind_t arena_bin_index(arena_t *arena, arena_bin_t *bin);
 prof_tctx_t *arena_prof_tctx_get(tsdn_t *tsdn, const void *ptr,
diff --git a/include/jemalloc/internal/jemalloc_internal_includes.h b/include/jemalloc/internal/jemalloc_internal_includes.h
index 1539c909..7a51c2d4 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/jemalloc_internal_types.h"
 #include "jemalloc/internal/nstime_types.h"
 #include "jemalloc/internal/spin_types.h"
 #include "jemalloc/internal/prng_types.h"
diff --git a/include/jemalloc/internal/jemalloc_internal_inlines_a.h b/include/jemalloc/internal/jemalloc_internal_inlines_a.h
index 978814b4..0d922f12 100644
--- a/include/jemalloc/internal/jemalloc_internal_inlines_a.h
+++ b/include/jemalloc/internal/jemalloc_internal_inlines_a.h
@@ -3,6 +3,7 @@
 
 #include "jemalloc/internal/atomic.h"
 #include "jemalloc/internal/bit_util.h"
+#include "jemalloc/internal/jemalloc_internal_types.h"
 
 #ifndef JEMALLOC_ENABLE_INLINE
 pszind_t psz2ind(size_t psz);
diff --git a/include/jemalloc/internal/jemalloc_internal_inlines_c.h b/include/jemalloc/internal/jemalloc_internal_inlines_c.h
index bb1f2deb..8c793819 100644
--- a/include/jemalloc/internal/jemalloc_internal_inlines_c.h
+++ b/include/jemalloc/internal/jemalloc_internal_inlines_c.h
@@ -1,6 +1,8 @@
 #ifndef JEMALLOC_INTERNAL_INLINES_C_H
 #define JEMALLOC_INTERNAL_INLINES_C_H
 
+#include "jemalloc/internal/jemalloc_internal_types.h"
+
 #ifndef JEMALLOC_ENABLE_INLINE
 arena_t *iaalloc(tsdn_t *tsdn, const void *ptr);
 size_t isalloc(tsdn_t *tsdn, const void *ptr);
diff --git a/include/jemalloc/internal/size_classes.sh b/include/jemalloc/internal/size_classes.sh
index 60bdbd21..da1e006c 100755
--- a/include/jemalloc/internal/size_classes.sh
+++ b/include/jemalloc/internal/size_classes.sh
@@ -279,9 +279,10 @@ cat <<EOF
 
 /* This file was automatically generated by size_classes.sh. */
 
+#include "jemalloc/internal/jemalloc_internal_types.h"
+
 /*
- * This header requires LG_SIZEOF_PTR, LG_TINY_MIN, LG_QUANTUM, and LG_PAGE to
- * be defined prior to inclusion, and it in turn defines:
+ * This header file defines:
  *
  *   LG_SIZE_CLASS_GROUP: Lg of size class count for each size doubling.
  *   SIZE_CLASSES: Complete table of SC(index, lg_grp, lg_delta, ndelta, psz,
diff --git a/include/jemalloc/internal/tcache_inlines.h b/include/jemalloc/internal/tcache_inlines.h
index 77e559a7..d425b82a 100644
--- a/include/jemalloc/internal/tcache_inlines.h
+++ b/include/jemalloc/internal/tcache_inlines.h
@@ -1,6 +1,7 @@
 #ifndef JEMALLOC_INTERNAL_TCACHE_INLINES_H
 #define JEMALLOC_INTERNAL_TCACHE_INLINES_H
 
+#include "jemalloc/internal/jemalloc_internal_types.h"
 #include "jemalloc/internal/util.h"
 
 #ifndef JEMALLOC_ENABLE_INLINE
diff --git a/src/jemalloc.c b/src/jemalloc.c
index d6b21586..3dad7265 100644
--- a/src/jemalloc.c
+++ b/src/jemalloc.c
@@ -4,6 +4,7 @@
 
 #include "jemalloc/internal/assert.h"
 #include "jemalloc/internal/atomic.h"
+#include "jemalloc/internal/jemalloc_internal_types.h"
 #include "jemalloc/internal/malloc_io.h"
 #include "jemalloc/internal/util.h"