2 files changed, 2 insertions, 2 deletions
diff --git a/AUTHORS b/AUTHORS
index d8f9da02..aaeb0ad9 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -99,4 +99,4 @@ a license to everyone to use it as detailed in LICENSE.)
 * Tobias Vrinssen <tobias@vrinssen.de>
 * Patrick R. Martin <patrick.martin.r@gmail.com>
 * Richard Quirk <richard.quirk@gmail.com>
-
+* Marcos Scriven <marcos@scriven.org>
diff --git a/emcc b/emcc
index f8d7319e..9e5de103 100755
--- a/emcc
+++ b/emcc
@@ -1231,7 +1231,7 @@ try:
         file_suffix = filename_type_suffix(input_file)
         if file_suffix.endswith(SOURCE_SUFFIXES):
           temp_file = temp_files[i]
-          logging.debug('optimizing %s with -O%d' % (input_file, llvm_opts))
+          logging.debug('optimizing %s with -O%s' % (input_file, llvm_opts))
           shared.Building.llvm_opt(temp_file, llvm_opts)
 
   # If we were just asked to generate bitcode, stop there