diff --git a/libc/bionic/syslog.cpp b/libc/bionic/syslog.cpp
index d1a0c5b..6b17d26 100644
--- a/libc/bionic/syslog.cpp
+++ b/libc/bionic/syslog.cpp
@@ -49,8 +49,6 @@
 }
 
 void vsyslog(int priority, const char* fmt, va_list args) {
-  int caller_errno = errno;
-
   // Check whether we're supposed to be logging messages of this priority.
   if ((syslog_priority_mask & LOG_MASK(LOG_PRI(priority))) == 0) {
     return;
@@ -75,48 +73,10 @@
     android_log_priority = ANDROID_LOG_DEBUG;
   }
 
-  // glibc's printf family support %m directly, but our BSD-based one doesn't.
-  // If the format string seems to contain "%m", rewrite it.
-  const char* log_fmt = fmt;
-  if (strstr(fmt, "%m") != nullptr) {
-    size_t dst_len = 1024;
-    char* dst = reinterpret_cast<char*>(malloc(dst_len));
-    log_fmt = dst;
-
-    const char* src = fmt;
-    for (; dst_len > 0 && *src != '\0'; ++src) {
-      if (*src == '%' && *(src + 1) == 'm') {
-        // Expand %m.
-        size_t n = strlcpy(dst, strerror(caller_errno), dst_len);
-        if (n >= dst_len) {
-          n = dst_len;
-        }
-        dst += n;
-        dst_len -= n;
-        ++src;
-      } else if (*src == '%' && *(src + 1) == '%') {
-        // We need to copy pairs of '%'s so the %m test works.
-        if (dst_len <= 2) {
-          break;
-        }
-        *dst++ = '%'; --dst_len;
-        *dst++ = '%'; --dst_len;
-        ++src;
-      } else {
-        *dst++ = *src; --dst_len;
-      }
-    }
-    *dst = '\0';
-  }
-
   // We can't let async_safe_format_log do the formatting because it doesn't support
   // all the printf functionality.
   char log_line[1024];
-  vsnprintf(log_line, sizeof(log_line), log_fmt, args);
-
-  if (log_fmt != fmt) {
-    free(const_cast<char*>(log_fmt));
-  }
+  vsnprintf(log_line, sizeof(log_line), fmt, args);
 
   async_safe_format_log(android_log_priority, log_tag, "%s", log_line);
 }