diff --git a/src/logging.h b/src/logging.h
index 48f40ad9d9d6cc7a3924544ebe2e3676d4439b6e..acfb00fa76096447ba92fce8b07196633a31cf94 100644
--- a/src/logging.h
+++ b/src/logging.h
@@ -20,31 +20,31 @@
 namespace wolf {
 namespace internal {
 
-constexpr auto repeated_brace = std::make_tuple("{}",
-                                                "{}{}",
-                                                "{}{}{}",
-                                                "{}{}{}{}",
-                                                "{}{}{}{}{}",
-                                                "{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
-                                                "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}"); // up to 25 args.
+static const auto repeated_brace = std::make_tuple("{}",
+                                                   "{}{}",
+                                                   "{}{}{}",
+                                                   "{}{}{}{}",
+                                                   "{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
+                                                   "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}"); // up to 25 args.
 
 class Logger : public Singleton<Logger>
 {