diff --git a/src/arbits/slbt_archive_meta.c b/src/arbits/slbt_archive_meta.c
index 804ac39..ec45777 100644
--- a/src/arbits/slbt_archive_meta.c
+++ b/src/arbits/slbt_archive_meta.c
@@ -16,15 +16,6 @@
 #include "slibtool_driver_impl.h"
 #include "slibtool_errinfo_impl.h"
 
-/* decimal values in archive header are right padded with ascii spaces */
-#define AR_DEC_PADDING (0x20)
-
-/* archive file members are right padded as needed with ascii newline */
-#define AR_OBJ_PADDING (0x0A)
-
-/* initial number of elements in the transient, on-stack vector */
-# define AR_STACK_VECTOR_ELEMENTS   (0x200)
-
 /* transient header info vector */
 struct ar_header_info {
 	struct ar_raw_file_header * phdr;
diff --git a/src/internal/slibtool_ar_impl.h b/src/internal/slibtool_ar_impl.h
index 48cdec8..0aa0526 100644
--- a/src/internal/slibtool_ar_impl.h
+++ b/src/internal/slibtool_ar_impl.h
@@ -5,6 +5,15 @@
 #include <slibtool/slibtool.h>
 #include <slibtool/slibtool_arbits.h>
 
+/* decimal values in archive header are right padded with ascii spaces */
+#define AR_DEC_PADDING (0x20)
+
+/* archive file members are right padded as needed with ascii newline */
+#define AR_OBJ_PADDING (0x0A)
+
+/* initial number of elements in the transient, on-stack vector */
+# define AR_STACK_VECTOR_ELEMENTS   (0x200)
+
 extern const struct argv_option slbt_ar_options[];
 
 struct ar_armaps_impl {