diff --git a/libs/kimath/src/geometry/seg.cpp b/libs/kimath/src/geometry/seg.cpp
index aa18774356..2e5a787407 100644
--- a/libs/kimath/src/geometry/seg.cpp
+++ b/libs/kimath/src/geometry/seg.cpp
@@ -54,11 +54,14 @@ constexpr T ct_sqrt(T x)
   return sqrt_helper<T>(x, 0, x / 2 + 1);
 }
 
+template <typename T>
+static constexpr T sqrt_max_typed = ct_sqrt( std::numeric_limits<T>::max() );
+
 template <typename T>
 T isqrt(T x)
 {
   T r = (T) std::sqrt((double) x);
-  T sqrt_max = ct_sqrt(std::numeric_limits<T>::max());
+  T sqrt_max = sqrt_max_typed<T>;
 
   while (r < sqrt_max && r * r < x)
     r++;