diff --git a/src/linux.h b/src/linux.h
index a0e56d73..0d1fc72f 100644
--- a/src/linux.h
+++ b/src/linux.h
@@ -60,7 +60,7 @@ void print_distribution(struct text_object *, char *, unsigned int);
 
 void determine_longstat_file(void);
 
-extern char e_iface[50];
+extern char e_iface[64];
 extern char interfaces_arr[MAX_NET_INTERFACES][64];
 
 #endif /* _LINUX_H */