diff --git a/third_party/minizip/ioapi.c b/third_party/minizip/ioapi.c
index b72d5806..281d3dfa 100644
--- a/third_party/minizip/ioapi.c
+++ b/third_party/minizip/ioapi.c
@@ -231,8 +231,7 @@ static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
     return ret;
 }
 
-void fill_fopen_filefunc (pzlib_filefunc_def)
-  zlib_filefunc_def* pzlib_filefunc_def;
+void fill_fopen_filefunc (zlib_filefunc_def* pzlib_filefunc_def)
 {
     pzlib_filefunc_def->zopen_file = fopen_file_func;
     pzlib_filefunc_def->zread_file = fread_file_func;
diff --git a/third_party/minizip/zip.c b/third_party/minizip/zip.c
index ebe70f4d..555bd980 100644
--- a/third_party/minizip/zip.c
+++ b/third_party/minizip/zip.c
@@ -186,7 +186,7 @@ typedef struct
 #include "crypt.h"
 #endif
 
-local linkedlist_datablock_internal* allocate_new_datablock()
+local linkedlist_datablock_internal* allocate_new_datablock(void)
 {
     linkedlist_datablock_internal* ldi;
     ldi = (linkedlist_datablock_internal*)