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-rw-r--r--engines/kyra/saveload.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/engines/kyra/saveload.cpp b/engines/kyra/saveload.cpp
index 358f61addf..c348c622a9 100644
--- a/engines/kyra/saveload.cpp
+++ b/engines/kyra/saveload.cpp
@@ -188,6 +188,9 @@ Common::OutSaveFile *KyraEngine::openSaveForWriting(const char *filename, const
const char *KyraEngine::getSavegameFilename(int num) {
static Common::String filename;
+
+ assert(num >= 0 && num <= 999);
+
char extension[5];
sprintf(extension, "%.3d", num);