diff --git a/core/testing/src/main/kotlin/app/pachli/core/testing/rules/MainCoroutineRule.kt b/core/testing/src/main/kotlin/app/pachli/core/testing/rules/MainCoroutineRule.kt
index 1750bd88e..5c2f29d80 100644
--- a/core/testing/src/main/kotlin/app/pachli/core/testing/rules/MainCoroutineRule.kt
+++ b/core/testing/src/main/kotlin/app/pachli/core/testing/rules/MainCoroutineRule.kt
@@ -27,7 +27,7 @@ import org.junit.rules.TestWatcher
 import org.junit.runner.Description
 
 @OptIn(ExperimentalCoroutinesApi::class)
-class MainCoroutineRule constructor(private val dispatcher: TestDispatcher = UnconfinedTestDispatcher()) : TestWatcher() {
+class MainCoroutineRule(private val dispatcher: TestDispatcher = UnconfinedTestDispatcher()) : TestWatcher() {
     override fun starting(description: Description) {
         super.starting(description)
         Dispatchers.setMain(dispatcher)