diff --git a/src/unix/darwin.c b/src/unix/darwin.c
index 69117d61..651545f8 100644
--- a/src/unix/darwin.c
+++ b/src/unix/darwin.c
@@ -65,28 +65,33 @@ uint64_t uv__hrtime(uv_clocktype_t type) {
 
 
 int uv_exepath(char* buffer, size_t* size) {
-  uint32_t usize;
-  int result;
-  char* path;
-  char* fullpath;
+  /* realpath(exepath) may be > PATH_MAX so double it to be on the safe side. */
+  char abspath[PATH_MAX * 2 + 1];
+  char exepath[PATH_MAX + 1];
+  uint32_t exepath_size;
+  size_t abspath_size;
 
   if (buffer == NULL || size == NULL || *size == 0)
     return -EINVAL;
 
-  usize = *size;
-  result = _NSGetExecutablePath(buffer, &usize);
-  if (result) return result;
+  exepath_size = sizeof(exepath);
+  if (_NSGetExecutablePath(exepath, &exepath_size))
+    return -EIO;
 
-  path = malloc(2 * PATH_MAX);
-  fullpath = realpath(buffer, path);
-  if (fullpath == NULL) {
-    SAVE_ERRNO(free(path));
+  if (realpath(exepath, abspath) != abspath)
     return -errno;
-  }
 
-  strncpy(buffer, fullpath, *size);
-  free(fullpath);
-  *size = strlen(buffer);
+  abspath_size = strlen(abspath);
+  if (abspath_size == 0)
+    return -EIO;
+
+  *size -= 1;
+  if (*size > abspath_size)
+    *size = abspath_size;
+
+  memcpy(buffer, abspath, *size);
+  buffer[*size] = '\0';
+
   return 0;
 }
 
diff --git a/test/test-get-currentexe.c b/test/test-get-currentexe.c
index b2399172..c6091ff7 100644
--- a/test/test-get-currentexe.c
+++ b/test/test-get-currentexe.c
@@ -65,5 +65,13 @@ TEST_IMPL(get_currentexe) {
   r = uv_exepath(buffer, &size);
   ASSERT(r == UV_EINVAL);
 
+  memset(buffer, -1, sizeof(buffer));
+
+  size = 1;
+  r = uv_exepath(buffer, &size);
+  ASSERT(r == 0);
+  ASSERT(size == 0);
+  ASSERT(buffer[0] == '\0');
+
   return 0;
 }