1 files changed, 1 insertions, 1 deletions
diff --git a/lodepng.h b/lodepng.h
index 59f0dda..0f87bc2 100644
--- a/lodepng.h
+++ b/lodepng.h
@@ -857,7 +857,7 @@ void load_file(std::vector<unsigned char>& buffer, const std::string& filename);
 Save the binary data in an std::vector to a file on disk. The file is overwritten
 without warning.
 */
-void save_file(const std::vector<unsigned char>& buffer, const std::string& filename);
+unsigned save_file(const std::vector<unsigned char>& buffer, const std::string& filename);
 #endif /* LODEPNG_COMPILE_DISK */
 #endif /* LODEPNG_COMPILE_PNG */