diff --git a/src/creatures/creature.hpp b/src/creatures/creature.hpp
index 06e6e171c9a..cba1096460b 100644
--- a/src/creatures/creature.hpp
+++ b/src/creatures/creature.hpp
@@ -63,7 +63,9 @@ class Creature : virtual public Thing, public SharedObject {
 	Creature();
 
 public:
-	static constexpr double speedA = 857.36, speedB = 261.29, speedC = -4795.01;
+	static constexpr double speedA = 857.36;
+	static constexpr double speedB = 261.29;
+	static constexpr double speedC = -4795.01;
 
 	virtual ~Creature();