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-rw-r--r--src/resources/imagewriter.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/resources/imagewriter.cpp b/src/resources/imagewriter.cpp
index f452a9050..2b8b8a7d9 100644
--- a/src/resources/imagewriter.cpp
+++ b/src/resources/imagewriter.cpp
@@ -35,7 +35,8 @@
#include "debug.h"
-bool ImageWriter::writePNG(SDL_Surface *surface, const std::string &filename)
+bool ImageWriter::writePNG(SDL_Surface *const surface,
+ const std::string &filename)
{
if (!surface)
return false;