diff --git a/common/src/main/kotlin/fr/username404/snowygui/config/ConfigScreen.kt b/common/src/main/kotlin/fr/username404/snowygui/config/ConfigScreen.kt
index 5e8685b..2ccc4de 100644
--- a/common/src/main/kotlin/fr/username404/snowygui/config/ConfigScreen.kt
+++ b/common/src/main/kotlin/fr/username404/snowygui/config/ConfigScreen.kt
@@ -55,7 +55,7 @@ val SnowyConfigScreen: Screen get() {
                                         isEmpty() || !it.contains(":") -> "$confPrefix.general.macros.missingdelimiter"
                                         size < 2 -> "$confPrefix.general.macros.missingelement"
                                         size > 2 -> "$confPrefix.general.macros.toomuchdelimiters"
-                                        it.count() > 16 -> "$confPrefix.general.macros.toomuchcharacters"
+                                        first().count() > 16 -> "$confPrefix.general.macros.toomuchcharacters"
                                         else -> null
                                     }
                                 )