diff --git a/archival/dpkg.c b/archival/dpkg.c
index df894472c..f921c43ee 100644
--- a/archival/dpkg.c
+++ b/archival/dpkg.c
@@ -1341,7 +1341,21 @@ static archive_handle_t *deb_extract(const char *filename, const char *ar_name,
 	return(ar_archive->sub_archive);
 }
 
-void unpack_package(deb_file_t *deb_file)
+static void data_extract_all_prefix(archive_handle_t *archive_handle)
+{
+	char *name_ptr = archive_handle->file_header->name;
+
+	name_ptr += strspn(name_ptr, "./");
+	if (name_ptr[0] != '\0') {
+		archive_handle->file_header->name = xmalloc(strlen(archive_handle->buffer) + 2 + strlen(name_ptr));
+		strcpy(archive_handle->file_header->name, archive_handle->buffer);
+		strcat(archive_handle->file_header->name, name_ptr);
+		data_extract_all(archive_handle);
+	}
+	return;
+}
+
+static void unpack_package(deb_file_t *deb_file)
 {
 	const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
 	const unsigned int status_num = search_status_hashtable(package_name);
diff --git a/archival/libunarchive/Makefile.in b/archival/libunarchive/Makefile.in
index 65d4a31cd..432077721 100644
--- a/archival/libunarchive/Makefile.in
+++ b/archival/libunarchive/Makefile.in
@@ -26,7 +26,6 @@ LIBUNARCHIVE-y:= \
 \
 	data_skip.o \
 	data_extract_all.o \
-	data_extract_all_prefix.o \
 	data_extract_to_stdout.o \
 	data_extract_to_buffer.o \
 \
diff --git a/archival/libunarchive/data_extract_all_prefix.c b/archival/libunarchive/data_extract_all_prefix.c
deleted file mode 100644
index 53f6b8aa4..000000000
--- a/archival/libunarchive/data_extract_all_prefix.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- *  Copyright (C) by Glenn McGrath <bug1@optushome.com.au>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <string.h>
-
-#include "libbb.h"
-#include "unarchive.h"
-
-extern void data_extract_all_prefix(archive_handle_t *archive_handle)
-{
-	char *name_ptr = archive_handle->file_header->name;
-
-	name_ptr += strspn(name_ptr, "./");
-	if (name_ptr[0] != '\0') {
-		archive_handle->file_header->name = xmalloc(strlen(archive_handle->buffer) + 2 + strlen(name_ptr));
-		strcpy(archive_handle->file_header->name, archive_handle->buffer);
-		strcat(archive_handle->file_header->name, name_ptr);
-		data_extract_all(archive_handle);
-	}
-	return;
-}
diff --git a/include/unarchive.h b/include/unarchive.h
index 56df5dadd..7926dccf5 100644
--- a/include/unarchive.h
+++ b/include/unarchive.h
@@ -76,7 +76,6 @@ extern void unpack_ar_archive(archive_handle_t *ar_archive);
 
 extern void data_skip(archive_handle_t *archive_handle);
 extern void data_extract_all(archive_handle_t *archive_handle);
-extern void data_extract_all_prefix(archive_handle_t *archive_handle);
 extern void data_extract_to_stdout(archive_handle_t *archive_handle);
 extern void data_extract_to_buffer(archive_handle_t *archive_handle);