diff --git a/CHANGELOG.md b/CHANGELOG.md
index a052e3647..f997b679e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -57,6 +57,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix issue where changing the dimensions of a sprite png image could cause the sprite editor's tile palette to display incorrectly
 - Fix line numbers in code editor for GBVM scripts with more than 999 lines
 - Fix issue preventing projects being created with the name "project"
+- Fix issue preventing checkbox type working in engine fields [@pau-tomas](https://github.com/pau-tomas)
 - Fix UI palette text control code. Palette indices now go from 1 to 8, because zero byte is a string terminator [@untoxa](https://github.com/untoxa)
 - Fix issue where migrating old projects could cause gbvm symbols to become empty, preventing build from completing (opening a broken project will now automatically fix this issue)
 
diff --git a/src/components/settings/EngineFieldsEditor.tsx b/src/components/settings/EngineFieldsEditor.tsx
index 4660fdfcc..4a49ff124 100644
--- a/src/components/settings/EngineFieldsEditor.tsx
+++ b/src/components/settings/EngineFieldsEditor.tsx
@@ -124,14 +124,12 @@ export const EngineFieldInput: FC<EngineFieldInputProps> = ({
     );
   }
   if (field.type === "checkbox") {
-    const theValue =
-      typeof value === "boolean" ? Boolean(value) : Boolean(field.defaultValue);
     return (
       <Checkbox
         id={field.key}
         name={field.key}
-        checked={theValue}
-        onChange={(e) => onChange(e.currentTarget.checked)}
+        checked={value === 1 ? true : false}
+        onChange={(e) => onChange(e.currentTarget.checked === true ? 1 : 0)}
       />
     );
   }
diff --git a/src/shared/lib/entities/entitiesTypes.ts b/src/shared/lib/entities/entitiesTypes.ts
index 9f8f30a8c..a628e4710 100644
--- a/src/shared/lib/entities/entitiesTypes.ts
+++ b/src/shared/lib/entities/entitiesTypes.ts
@@ -333,7 +333,7 @@ export type CustomEventNormalized = Omit<CustomEvent, "script"> & {
 
 export type EngineFieldValue = {
   id: string;
-  value?: number | string | boolean | undefined;
+  value?: number | string | undefined;
 };
 
 export type MetaspriteTile = {
diff --git a/src/shared/lib/resources/types.ts b/src/shared/lib/resources/types.ts
index 69d6fe432..3b155c56b 100644
--- a/src/shared/lib/resources/types.ts
+++ b/src/shared/lib/resources/types.ts
@@ -715,9 +715,7 @@ export type VariablesResource = Static<typeof VariablesResource>;
 
 export const EngineFieldValueData = Type.Object({
   id: Type.String(),
-  value: Type.Optional(
-    Type.Union([Type.String(), Type.Boolean(), Type.Number()])
-  ),
+  value: Type.Optional(Type.Union([Type.String(), Type.Number()])),
 });
 
 export type EngineFieldValueData = Static<typeof EngineFieldValueData>;
diff --git a/src/store/features/entities/entitiesState.ts b/src/store/features/entities/entitiesState.ts
index 4f4c2fe3f..9b479de95 100644
--- a/src/store/features/entities/entitiesState.ts
+++ b/src/store/features/entities/entitiesState.ts
@@ -4171,7 +4171,7 @@ const editEngineFieldValue: CaseReducer<
   EntitiesState,
   PayloadAction<{
     engineFieldId: string;
-    value: string | number | boolean | undefined;
+    value: string | number | undefined;
   }>
 > = (state, action) => {
   engineFieldValuesAdapter.upsertOne(state.engineFieldValues, {