diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6fa78a9..d247b8c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Build Cosmopolitan
         run: |
           gcc -g -Os -static -nostdlib -nostdinc -fno-pie -no-pie -mno-red-zone \
-            -fno-omit-frame-pointer -pg -mnop-mcount \
+            -fno-omit-frame-pointer -pg -mnop-mcount -D__cosmopolitan \
             -o base16384.com.dbg base16384.c base1432.c base14.c -fuse-ld=bfd -Wl,-T,ape.lds \
             -include cosmopolitan.h crt.o ape.o cosmopolitan.a
           objcopy -S -O binary base16384.com.dbg base16384.com
diff --git a/base14.c b/base14.c
index 0db1263..15a85c8 100644
--- a/base14.c
+++ b/base14.c
@@ -1,5 +1,3 @@
-#include "base14.h"
-
 int encode_len(int dlen) {
 	int outlen = dlen / 7 * 8;
 	int offset = dlen % 7;
diff --git a/base1432.c b/base1432.c
index 4256bc2..48d5430 100644
--- a/base1432.c
+++ b/base1432.c
@@ -1,5 +1,14 @@
 // base1432.c
 // fumiama 20220319
+#ifdef __cosmopolitan // always le
+#  define be16toh(x) __builtin_bswap16(x)
+#  define be32toh(x) __builtin_bswap32(x)
+#  define htobe16(x) __builtin_bswap16(x)
+#  define htobe32(x) __builtin_bswap32(x)
+typedef unsigned int uint32_t;
+typedef int int32_t;
+typedef unsigned char uint8_t;
+#else
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -36,6 +45,7 @@
 		#  define htobe32(x) _byteswap_ulong(x)
 	#endif
 #endif
+#endif
 #include "base14.h"
 
 // #define DEBUG
diff --git a/base16384.c b/base16384.c
index 766621e..903b0b2 100644
--- a/base16384.c
+++ b/base16384.c
@@ -1,3 +1,6 @@
+#ifdef __cosmopolitan
+typedef off_t long;
+#else
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/stat.h>
@@ -5,16 +8,21 @@
 #ifdef __WINNT__
 	#include <windows.h>
 #endif
+#endif
 #include "base14.h"
 
+#ifdef __cosmopolitan
+#define get_file_size(filepath) ((off_t)GetFileSize(filepath))
+#else
 static off_t get_file_size(const char* filepath) {
     struct stat statbuf;
     return stat(filepath, &statbuf)?-1:statbuf.st_size;
 }
+#endif
 
 void encode_file(const char* input, const char* output) {
 	off_t inputsize = get_file_size(input);
-	if(inputsize < 0) {
+	if(inputsize <= 0) {
 		puts("Get file size error!");
 		return;
 	}
@@ -77,7 +85,7 @@ static int is_next_end(FILE* fp) {
 
 void decode_file(const char* input, const char* output) {
 	off_t inputsize = get_file_size(input);
-	if(inputsize < 0) {
+	if(inputsize <= 0) {
 		puts("Get file size error!");
 		return;
 	}
@@ -127,6 +135,7 @@ void decode_file(const char* input, const char* output) {
 	以缩短程序运行时间 */
 }
 
+#ifndef __cosmopolitan
 #ifndef __WINNT__
 unsigned long get_start_ms() {
     struct timespec ts;
@@ -134,6 +143,7 @@ unsigned long get_start_ms() {
     return (ts.tv_sec * 1000 + ts.tv_nsec / 1000000);
 }
 #endif
+#endif
 
 #define CHOICE argv[1][1]
 int main(int argc, char** argv) {
@@ -143,20 +153,24 @@ int main(int argc, char** argv) {
         fputs("\t-d decode\n", stderr);
         exit(EXIT_FAILURE);
     }
+	#ifndef __cosmopolitan
 	#ifdef __WINNT__
 		clock_t t = clock();
 	#else
 		unsigned long t = get_start_ms();
 	#endif
+	#endif
 	switch(CHOICE) {
 		case 'e': encode_file(argv[2], argv[3]); break;
 		case 'd': decode_file(argv[2], argv[3]); break;
 		default: break;
 	}
+	#ifndef __cosmopolitan
 	#ifdef __WINNT__
 		printf("spend time: %lums\n", clock() - t);
 	#else
 		printf("spend time: %lums\n", get_start_ms() - t);
 	#endif
+	#endif
     return 0;
 }