diff --git a/platform/platform-impl/src/com/intellij/net/ssl/CertificateWarningDialog.kt b/platform/platform-impl/src/com/intellij/net/ssl/CertificateWarningDialog.kt
index c06ac8190cc3..a8ac6b717bff 100644
--- a/platform/platform-impl/src/com/intellij/net/ssl/CertificateWarningDialog.kt
+++ b/platform/platform-impl/src/com/intellij/net/ssl/CertificateWarningDialog.kt
@@ -119,6 +119,7 @@ internal class CertificateWarningDialog(
           if (it && !isDetailsShown) {
             setOKButtonText(IdeBundle.message("trust.certificate"))
             isDetailsShown = true
+            isOKActionEnabled = selectedCerts.isNotEmpty()
             updateDetails()
           }
           pack()