diff --git a/evaluator/src/main/kotlin/gay/pizza/pork/evaluator/EvaluationVisitor.kt b/evaluator/src/main/kotlin/gay/pizza/pork/evaluator/EvaluationVisitor.kt
index 408a057..466f8db 100644
--- a/evaluator/src/main/kotlin/gay/pizza/pork/evaluator/EvaluationVisitor.kt
+++ b/evaluator/src/main/kotlin/gay/pizza/pork/evaluator/EvaluationVisitor.kt
@@ -117,7 +117,7 @@ class EvaluationVisitor(root: Scope) : NodeVisitor<Any> {
         convert = { it.toDouble() },
         plus = { +it },
         minus = { -it },
-        binaryNot = unaryFloatingPointTypeError("binary not")
+        binaryNot = { unaryFloatingPointTypeError("binary not") }
       )
     }
     is Float -> {
@@ -127,7 +127,7 @@ class EvaluationVisitor(root: Scope) : NodeVisitor<Any> {
         convert = { it.toFloat() },
         plus = { +it },
         minus = { -it },
-        binaryNot = unaryFloatingPointTypeError("binary not")
+        binaryNot = { unaryFloatingPointTypeError("binary not") }
       )
     }
     is Long -> {