2 files changed, 5 insertions, 5 deletions
diff --git a/src/modules/science/index.ts b/src/modules/science/index.ts
index 26c78014..525ff8bf 100644
--- a/src/modules/science/index.ts
+++ b/src/modules/science/index.ts
@@ -49,7 +49,7 @@ export class ScienceModule extends ModuleBase {
    */
   chemicalElement(): ChemicalElement {
     return this.faker.helpers.arrayElement(
-      this.faker.definitions.science.chemicalElement
+      this.faker.definitions.science.chemical_element
     );
   }
 
diff --git a/src/modules/system/index.ts b/src/modules/system/index.ts
index 3468bbb0..1fcc9be3 100644
--- a/src/modules/system/index.ts
+++ b/src/modules/system/index.ts
@@ -114,7 +114,7 @@ export class SystemModule extends ModuleBase {
    * @since 3.1.0
    */
   mimeType(): string {
-    const mimeTypeKeys = Object.keys(this.faker.definitions.system.mimeTypes);
+    const mimeTypeKeys = Object.keys(this.faker.definitions.system.mime_types);
 
     return this.faker.helpers.arrayElement(mimeTypeKeys);
   }
@@ -152,7 +152,7 @@ export class SystemModule extends ModuleBase {
    * @since 3.1.0
    */
   fileType(): string {
-    const mimeTypes = this.faker.definitions.system.mimeTypes;
+    const mimeTypes = this.faker.definitions.system.mime_types;
 
     const typeSet = new Set(
       Object.keys(mimeTypes).map((key) => key.split('/')[0])
@@ -172,7 +172,7 @@ export class SystemModule extends ModuleBase {
    * @since 3.1.0
    */
   fileExt(mimeType?: string): string {
-    const mimeTypes = this.faker.definitions.system.mimeTypes;
+    const mimeTypes = this.faker.definitions.system.mime_types;
 
     if (typeof mimeType === 'string') {
       return this.faker.helpers.arrayElement(mimeTypes[mimeType].extensions);
@@ -193,7 +193,7 @@ export class SystemModule extends ModuleBase {
    * @since 3.1.0
    */
   directoryPath(): string {
-    const paths = this.faker.definitions.system.directoryPaths;
+    const paths = this.faker.definitions.system.directory_paths;
     return this.faker.helpers.arrayElement(paths);
   }