diff --git a/apps/files_encryption/lib/crypt.php b/apps/files_encryption/lib/crypt.php
index 56d5e082e49f4bdd1fcb54e843cd54fc17b07e60..ddeb3590f6032c1e5822f46291f8e5e8cc247171 100755
--- a/apps/files_encryption/lib/crypt.php
+++ b/apps/files_encryption/lib/crypt.php
@@ -206,7 +206,7 @@ class Crypt {
 
 		} else {
 
-			\OC_Log::write('Encryption library', 'Encryption (symmetric) of content failed', \OC_Log::ERROR);
+			\OCP\Util::writeLog('Encryption library', 'Encryption (symmetric) of content failed', \OCP\Util::ERROR);
 
 			return false;
 
@@ -305,7 +305,7 @@ class Crypt {
 
 		} else {
 
-			\OC_Log::write('Encryption library', 'Encryption (symmetric) of keyfile content failed', \OC_Log::ERROR);
+			\OCP\Util::writeLog('Encryption library', 'Encryption (symmetric) of keyfile content failed', \OCP\Util::ERROR);
 
 			return false;
 
@@ -452,7 +452,7 @@ class Crypt {
 
 		} else {
 
-			\OC_Log::write('Encryption library', 'Decryption (asymmetric) of sealed content failed', \OC_Log::ERROR);
+			\OCP\Util::writeLog('Encryption library', 'Decryption (asymmetric) of sealed content failed', \OCP\Util::ERROR);
 
 			return false;
 
@@ -503,7 +503,7 @@ class Crypt {
 			if (!$strong) {
 
 				// If OpenSSL indicates randomness is insecure, log error
-				\OC_Log::write('Encryption library', 'Insecure symmetric key was generated using openssl_random_pseudo_bytes()', \OC_Log::WARN);
+				\OCP\Util::writeLog('Encryption library', 'Insecure symmetric key was generated using openssl_random_pseudo_bytes()', \OCP\Util::WARN);
 
 			}
 
diff --git a/apps/files_encryption/lib/helper.php b/apps/files_encryption/lib/helper.php
index 5fa4583263bab454a4ba679224174ff461d7a290..05172f5a386eebee5d2e648ad1cd3825098776bb 100755
--- a/apps/files_encryption/lib/helper.php
+++ b/apps/files_encryption/lib/helper.php
@@ -72,8 +72,8 @@ class Helper {
 		// Check files_encryption infrastructure is ready for action
 		if (!$util->ready()) {
 
-			\OC_Log::write('Encryption library', 'User account "' . $util->getUserId()
-												 . '" is not ready for encryption; configuration started', \OC_Log::DEBUG);
+			\OCP\Util::writeLog('Encryption library', 'User account "' . $util->getUserId()
+												 . '" is not ready for encryption; configuration started', \OCP\Util::DEBUG);
 
 			if (!$util->setupServerSide($password)) {
 				return false;
diff --git a/apps/files_encryption/lib/keymanager.php b/apps/files_encryption/lib/keymanager.php
index c7b431c3523a31989020df9d0dafdcac46a3b531..9bb854325de0c28cc429e011439d6e0a8fd25503 100755
--- a/apps/files_encryption/lib/keymanager.php
+++ b/apps/files_encryption/lib/keymanager.php
@@ -285,8 +285,8 @@ class Keymanager {
 
 		if (!$result) {
 
-			\OC_Log::write('Encryption library',
-				'Could not delete keyfile; does not exist: "' . $keyPath, \OC_Log::ERROR);
+			\OCP\Util::writeLog('Encryption library',
+				'Could not delete keyfile; does not exist: "' . $keyPath, \OCP\Util::ERROR);
 
 		}
 
@@ -475,8 +475,8 @@ class Keymanager {
 			foreach ($matches as $ma) {
 				$result = unlink($ma);
 				if (!$result) {
-					\OC_Log::write('Encryption library',
-						'Keyfile or shareKey could not be deleted for file "' . $filePath . '"', \OC_Log::ERROR);
+					\OCP\Util::writeLog('Encryption library',
+						'Keyfile or shareKey could not be deleted for file "' . $filePath . '"', \OCP\Util::ERROR);
 				}
 			}
 		}
@@ -507,9 +507,9 @@ class Keymanager {
 			foreach ($userIds as $userId) {
 
 				if (!$view->unlink($shareKeyPath . '.' . $userId . '.shareKey')) {
-					\OC_Log::write('Encryption library',
+					\OCP\Util::writeLog('Encryption library',
 						'Could not delete shareKey; does not exist: "' . $shareKeyPath . '.' . $userId
-						. '.shareKey"', \OC_Log::ERROR);
+						. '.shareKey"', \OCP\Util::ERROR);
 				}
 
 			}
@@ -531,8 +531,8 @@ class Keymanager {
 		/** @var $matches array */
 		foreach ($matches as $ma) {
 			if (!unlink($ma)) {
-				\OC_Log::write('Encryption library',
-					'Could not delete shareKey; does not exist: "' . $ma . '"', \OC_Log::ERROR);
+				\OCP\Util::writeLog('Encryption library',
+					'Could not delete shareKey; does not exist: "' . $ma . '"', \OCP\Util::ERROR);
 			}
 		}
 		$subdirs = $directories = glob(preg_quote($dir) . '/*', GLOB_ONLYDIR);
diff --git a/apps/files_encryption/lib/proxy.php b/apps/files_encryption/lib/proxy.php
index 6d5b4fe5e34ba1a05c1bd0b744aebe352437bf68..5ccf0d94d371a7eb9dcd7c9615d8379585dc6f8a 100644
--- a/apps/files_encryption/lib/proxy.php
+++ b/apps/files_encryption/lib/proxy.php
@@ -268,8 +268,8 @@ class Proxy extends \OC_FileProxy {
 
 		// Delete keyfile & shareKey so it isn't orphaned
 		if (!Keymanager::deleteFileKey($view, $owner, $ownerPath)) {
-			\OC_Log::write('Encryption library',
-				'Keyfile or shareKey could not be deleted for file "' . $ownerPath . '"', \OC_Log::ERROR);
+			\OCP\Util::writeLog('Encryption library',
+				'Keyfile or shareKey could not be deleted for file "' . $ownerPath . '"', \OCP\Util::ERROR);
 		}
 
 		Keymanager::delAllShareKeys($view, $owner, $ownerPath);