diff --git a/minizip/unzip.c b/minizip/unzip.c
index 5a51d8a..9cb1743 100755
--- a/minizip/unzip.c
+++ b/minizip/unzip.c
@@ -1629,7 +1629,7 @@ extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method,
     if (password != NULL)
     {
         int i;
-        s->pcrc_32_tab = get_crc_table();
+        s->pcrc_32_tab = (const unsigned long*)get_crc_table();
         init_keys(password,s->keys,s->pcrc_32_tab);
         if (ZSEEK64(s->z_filefunc, s->filestream,
                   s->pfile_in_zip_read->pos_in_zipfile +
diff --git a/minizip/zip.c b/minizip/zip.c
index 044c73e..db501c1 100755
--- a/minizip/zip.c
+++ b/minizip/zip.c
@@ -1250,7 +1250,7 @@ extern int ZEXPORT zipOpenNewFileInZip4_64 (zipFile file, const char* filename,
         unsigned char bufHead[RAND_HEAD_LEN];
         unsigned int sizeHead;
         zi->ci.encrypt = 1;
-        zi->ci.pcrc_32_tab = get_crc_table();
+        zi->ci.pcrc_32_tab = (const unsigned long*)get_crc_table();
         /*init_keys(password,zi->ci.keys,zi->ci.pcrc_32_tab);*/
 
         sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting);