diff --git a/src/interpreter/denotable.ts b/src/interpreter/denotable.ts
index bb520f8..119cccf 100644
--- a/src/interpreter/denotable.ts
+++ b/src/interpreter/denotable.ts
@@ -1,5 +1,4 @@
 import type { Identifier } from '@/parser';
-import { testingLogger } from '@t/logger';
 
 export type UnionDenotableType =
   | Array<DenotableType | DenotableFunctionSignature>
diff --git a/src/interpreter/interpreter.ts b/src/interpreter/interpreter.ts
index 278e027..7a49f7d 100644
--- a/src/interpreter/interpreter.ts
+++ b/src/interpreter/interpreter.ts
@@ -29,6 +29,11 @@ const evaluateValue = (
   if ('int' in value) {
     return { type: 'int', value: value.int };
   }
+
+  if ('bool' in value) {
+    return { type: 'bool', value: value.bool };
+  }
+
   if ('name' in value) {
     return env.get(value.name);
   }
diff --git a/src/parser/grammar.pegjs b/src/parser/grammar.pegjs
index f586dcc..180b87f 100644
--- a/src/parser/grammar.pegjs
+++ b/src/parser/grammar.pegjs
@@ -234,7 +234,7 @@ IntStatement = INT _ int:Integer { return int; }
 
 RealStatement = REAL _ real:Real { return real; }
 
-BoolStatement = BOOL _ bool:Integer { return bool; }
+BoolStatement = BOOL _ bool:Integer { return { bool: bool.int }; }
 
 StringStatement = STRING _ string:QuotedString { return string; }
 
diff --git a/src/parser/index.ts b/src/parser/index.ts
index 7831c8e..366042c 100644
--- a/src/parser/index.ts
+++ b/src/parser/index.ts
@@ -2,5 +2,5 @@ export * from './generate';
 export * from './parser';
 import * as peggy from './parser';
 
-export const peggyParse = (source: string): peggy.FunctionDefinition[] =>
+export const peggyParse = (source: string): peggy.ContinuationExpression[] =>
   peggy.parse(source);
diff --git a/src/parser/parser.ts b/src/parser/parser.ts
index b196866..934f3ff 100644
--- a/src/parser/parser.ts
+++ b/src/parser/parser.ts
@@ -512,7 +512,7 @@ function peg$parse(input, options) {
  return real; };// @ts-ignore
 
   var peg$f18 = function(bool) {// @ts-ignore
- return bool; };// @ts-ignore
+ return { bool: bool.int }; };// @ts-ignore
 
   var peg$f19 = function(string) {// @ts-ignore
  return string; };// @ts-ignore
@@ -5395,7 +5395,7 @@ export type VarStatement = Identifier;
 export type LabelStatement = Identifier;
 export type IntStatement = Integer;
 export type RealStatement = Real;
-export type BoolStatement = Integer;
+export type BoolStatement = { bool: any };
 export type StringStatement = QuotedString;
 export type AccessStatement = OffsetStatement | SelectStatement;
 export type OffsetStatement = Integer;