1 files changed, 5 insertions, 5 deletions
diff --git a/toolkit/components/uniffi-bindgen-gecko-js/src/templates/js/Enum.sys.mjs b/toolkit/components/uniffi-bindgen-gecko-js/src/templates/js/Enum.sys.mjs
index f7716ac6d8..cbcc256eb9 100644
--- a/toolkit/components/uniffi-bindgen-gecko-js/src/templates/js/Enum.sys.mjs
+++ b/toolkit/components/uniffi-bindgen-gecko-js/src/templates/js/Enum.sys.mjs
@@ -16,7 +16,7 @@ export class {{ ffi_converter }} extends FfiConverterArrayBuffer {
                 return {{ enum_.nm() }}.{{ variant.name().to_shouty_snake_case() }}
             {%- endfor %}
             default:
-                return new Error("Unknown {{ enum_.nm() }} variant");
+                throw new UniFFITypeError("Unknown {{ enum_.nm() }} variant");
         }
     }
 
@@ -27,7 +27,7 @@ export class {{ ffi_converter }} extends FfiConverterArrayBuffer {
             return;
         }
         {%- endfor %}
-        return new Error("Unknown {{ enum_.nm() }} variant");
+        throw new UniFFITypeError("Unknown {{ enum_.nm() }} variant");
     }
 
     static computeSize(value) {
@@ -72,7 +72,7 @@ export class {{ ffi_converter }} extends FfiConverterArrayBuffer {
                     );
             {%- endfor %}
             default:
-                return new Error("Unknown {{ enum_.nm() }} variant");
+                throw new UniFFITypeError("Unknown {{ enum_.nm() }} variant");
         }
     }
 
@@ -86,7 +86,7 @@ export class {{ ffi_converter }} extends FfiConverterArrayBuffer {
             return;
         }
         {%- endfor %}
-        return new Error("Unknown {{ enum_.nm() }} variant");
+        throw new UniFFITypeError("Unknown {{ enum_.nm() }} variant");
     }
 
     static computeSize(value) {
@@ -100,7 +100,7 @@ export class {{ ffi_converter }} extends FfiConverterArrayBuffer {
             return totalSize;
         }
         {%- endfor %}
-        return new Error("Unknown {{ enum_.nm() }} variant");
+        throw new UniFFITypeError("Unknown {{ enum_.nm() }} variant");
     }
 
     static checkType(value) {