diff --git a/lib/Service/RecoveryEmailService.php b/lib/Service/RecoveryEmailService.php
index dc4aad621023d21298c5336c83edafdd2c5965cd..d4b7c7f6bb9adabcb8989e7784786b81ad5407dd 100644
--- a/lib/Service/RecoveryEmailService.php
+++ b/lib/Service/RecoveryEmailService.php
@@ -336,12 +336,12 @@ class RecoveryEmailService {
 			return false;
 		}
 
-		$usersWithEmailRecovery = $this->config->getUsersForUserValue($this->appName, 'recovery-email', $recoveryEmail);
+		$usersWithEmailRecovery = $this->config->getUsersForUserValueCaseInsensitive($this->appName, 'recovery-email', $recoveryEmail);
 		if (count($usersWithEmailRecovery)) {
 			return true;
 		}
 
-		$usersWithUnverifiedRecovery = $this->config->getUsersForUserValue($this->appName, 'unverified-recovery-email', $recoveryEmail);
+		$usersWithUnverifiedRecovery = $this->config->getUsersForUserValueCaseInsensitive($this->appName, 'unverified-recovery-email', $recoveryEmail);
 		if (count($usersWithUnverifiedRecovery)) {
 			return true;
 		}