diff --git a/src/AcDream.Core/Spells/EnchantmentMath.cs b/src/AcDream.Core/Spells/EnchantmentMath.cs
index d23c3938..d0c0cb4e 100644
--- a/src/AcDream.Core/Spells/EnchantmentMath.cs
+++ b/src/AcDream.Core/Spells/EnchantmentMath.cs
@@ -109,11 +109,12 @@ public static class EnchantmentMath
                 // Bucket-4 branch above the table lookup.)
                 if (ench.Bucket == 4)
                 {
+                    string droppedValue = ench.StatModValue is float dv
+                        ? dv.ToString("F4", System.Globalization.CultureInfo.InvariantCulture)
+                        : "NULL";
                     System.Console.WriteLine(
                         System.FormattableString.Invariant(
-                            $"[stat-chain] VITAE DROPPED by spell-table lookup: "
-                            + $"spell={ench.SpellId} value="
-                            + $"{(ench.StatModValue is float dv ? dv.ToString("F4") : "NULL")}"));
+                            $"[stat-chain] VITAE DROPPED by spell-table lookup: spell={ench.SpellId} value={droppedValue}"));
                 }
                 continue;
             }
diff --git a/src/AcDream.Core/Spells/Spellbook.cs b/src/AcDream.Core/Spells/Spellbook.cs
index d78a9d43..cb678abd 100644
--- a/src/AcDream.Core/Spells/Spellbook.cs
+++ b/src/AcDream.Core/Spells/Spellbook.cs
@@ -389,12 +389,12 @@ public sealed class Spellbook
             // decidable from one log. Bucket 4 = vitae singleton class.
             if (enchantment.Bucket == 4)
             {
+                string vitaeValue = enchantment.StatModValue is float v
+                    ? v.ToString("F4", System.Globalization.CultureInfo.InvariantCulture)
+                    : "NULL";
                 System.Console.WriteLine(
                     System.FormattableString.Invariant(
-                        $"[stat-chain] login vitae installed: spell={enchantment.SpellId} "
-                        + $"statModType=0x{enchantment.StatModType ?? 0:X} "
-                        + $"key={enchantment.StatModKey ?? 0} "
-                        + $"value={(enchantment.StatModValue is float v ? v.ToString("F4") : "NULL")}"));
+                        $"[stat-chain] login vitae installed: spell={enchantment.SpellId} statModType=0x{enchantment.StatModType ?? 0:X} key={enchantment.StatModKey ?? 0} value={vitaeValue}"));
             }
         }