diff --git a/app-common/src/main/java/im/angry/openeuicc/ui/wizard/DownloadWizardDetailsFragment.kt b/app-common/src/main/java/im/angry/openeuicc/ui/wizard/DownloadWizardDetailsFragment.kt
index 1c69de5..357a493 100644
--- a/app-common/src/main/java/im/angry/openeuicc/ui/wizard/DownloadWizardDetailsFragment.kt
+++ b/app-common/src/main/java/im/angry/openeuicc/ui/wizard/DownloadWizardDetailsFragment.kt
@@ -7,6 +7,7 @@ import android.view.ViewGroup
 import androidx.core.widget.addTextChangedListener
 import com.google.android.material.textfield.TextInputLayout
 import im.angry.openeuicc.common.R
+import kotlin.math.sign
 
 class DownloadWizardDetailsFragment : DownloadWizardActivity.DownloadWizardStepFragment() {
     private var inputComplete = false