diff --git a/ultrasonic/build.gradle b/ultrasonic/build.gradle
index 01f5c64f..f8530d95 100644
--- a/ultrasonic/build.gradle
+++ b/ultrasonic/build.gradle
@@ -56,6 +56,7 @@ android {
 
     kotlinOptions {
         jvmTarget = "1.8"
+        freeCompilerArgs += "-Xopt-in=org.koin.core.component.KoinApiExtension"
     }
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8