1 files changed, 1 insertions, 1 deletions
diff --git a/src/mtpz.h b/src/mtpz.h
index c7c231b..f024394 100644
--- a/src/mtpz.h
+++ b/src/mtpz.h
@@ -45,7 +45,7 @@ static inline int mtpz_loaddata(void)
 
 #endif
 
-int use_mtpz;
+extern int use_mtpz;
 
 #endif /* LIBMTP_H_INCLUSION_GUARD */