diff --git a/libc/async_safe/include/async_safe/log.h b/libc/async_safe/include/async_safe/log.h
index 2f54742..10833e4 100644
--- a/libc/async_safe/include/async_safe/log.h
+++ b/libc/async_safe/include/async_safe/log.h
@@ -92,7 +92,7 @@
 
 int async_safe_format_fd(int fd, const char* format , ...) __printflike(2, 3);
 int async_safe_format_log(int pri, const char* tag, const char* fmt, ...) __printflike(3, 4);
-int async_safe_format_log_va_list( int pri, const char* tag, const char* fmt, va_list ap);
+int async_safe_format_log_va_list(int pri, const char* tag, const char* fmt, va_list ap);
 int async_safe_write_log(int pri, const char* tag, const char* msg);
 
 #define CHECK(predicate) \