fix warning
diff --git a/archival/libunarchive/decompress_unzip.c b/archival/libunarchive/decompress_unzip.c
index 770e414..1b2d587 100644
--- a/archival/libunarchive/decompress_unzip.c
+++ b/archival/libunarchive/decompress_unzip.c
@@ -147,7 +147,7 @@
 unsigned int bytebuffer_offset = 0;
 unsigned int bytebuffer_size = 0;
 
-static void fill_bytebuffer()
+static void fill_bytebuffer(void)
 {
 	if (bytebuffer_offset >= bytebuffer_size) {
 		/* Leave the first 4 bytes empty so we can always unwind the bitbuffer 
diff --git a/archival/libunarchive/unzip.c b/archival/libunarchive/unzip.c
index 770e414..1b2d587 100644
--- a/archival/libunarchive/unzip.c
+++ b/archival/libunarchive/unzip.c
@@ -147,7 +147,7 @@
 unsigned int bytebuffer_offset = 0;
 unsigned int bytebuffer_size = 0;
 
-static void fill_bytebuffer()
+static void fill_bytebuffer(void)
 {
 	if (bytebuffer_offset >= bytebuffer_size) {
 		/* Leave the first 4 bytes empty so we can always unwind the bitbuffer