diff --git a/libs/cg/include/psemek/cg/convex/separation.hpp b/libs/cg/include/psemek/cg/convex/separation.hpp
index 3a0a717b..3c11a947 100644
--- a/libs/cg/include/psemek/cg/convex/separation.hpp
+++ b/libs/cg/include/psemek/cg/convex/separation.hpp
@@ -175,14 +175,19 @@ namespace psemek::cg
 	{
 		static_assert(dimension(b1) == dimension(b2));
 		static_assert(dimension(b1) == 2 || dimension(b1) == 3);
+
 		if constexpr (dimension(b1) == 2)
 		{
 			return detail::separation_2d(b1, b2);
 		}
-		else if (dimension(b1) == 3)
+		else if constexpr (dimension(b1) == 3)
 		{
 			return detail::separation_3d(b1, b2);
 		}
+		else
+		{
+			return;
+		}
 	}
 
 }