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-rw-r--r--core/qthelper.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/core/qthelper.h b/core/qthelper.h
index 4d39ad368..24215d43f 100644
--- a/core/qthelper.h
+++ b/core/qthelper.h
@@ -27,7 +27,7 @@ void learnImages(const QDir dir, int max_recursions);
void add_hash(const QString filename, QByteArray hash);
void hashPicture(struct picture *picture);
QString localFilePath(const QString originalFilename);
-QString fileFromHash(char *hash);
+QString fileFromHash(const char *hash);
void learnHash(struct picture *picture, QByteArray hash);
extern "C" void cache_picture(struct picture *picture);
weight_t string_to_weight(const char *str);