diff --git a/source4/lib/replace/README b/source4/lib/replace/README
index 77558b2ca96..e7b89936c0f 100644
--- a/source4/lib/replace/README
+++ b/source4/lib/replace/README
@@ -92,6 +92,7 @@ ZERO_STRUCTPN
 ZERO_ARRAY
 ARRAY_SIZE
 PTR_DIFF
+offsetof
 
 Headers:
 stdint.h
diff --git a/source4/lib/replace/replace.h b/source4/lib/replace/replace.h
index 06173bd84b9..e827719951f 100644
--- a/source4/lib/replace/replace.h
+++ b/source4/lib/replace/replace.h
@@ -52,6 +52,10 @@
 #define QSORT_CAST (int (*)(const void *, const void *))
 #endif
 
+#ifndef offsetof
+#define offsetof(t,f) ((unsigned int)&((t *)0)->f)
+#endif
+
 #ifdef HAVE_STDINT_H
 #include <stdint.h>
 /* force off HAVE_INTTYPES_H so that roken doesn't try to include both,
diff --git a/source4/lib/tdb/common/tdb_private.h b/source4/lib/tdb/common/tdb_private.h
index 3871c29170e..99fa4434c0c 100644
--- a/source4/lib/tdb/common/tdb_private.h
+++ b/source4/lib/tdb/common/tdb_private.h
@@ -37,10 +37,6 @@
 typedef uint32_t tdb_len_t;
 typedef uint32_t tdb_off_t;
 
-#ifndef offsetof
-#define offsetof(t,f) ((unsigned int)&((t *)0)->f)
-#endif
-
 #define TDB_MAGIC_FOOD "TDB file\n"
 #define TDB_VERSION (0x26011967 + 6)
 #define TDB_MAGIC (0x26011999U)