diff --git a/includes/ApiVisualEditor.php b/includes/ApiVisualEditor.php
index 822fc91772..8bd6be53fb 100644
--- a/includes/ApiVisualEditor.php
+++ b/includes/ApiVisualEditor.php
@@ -134,13 +134,15 @@ class ApiVisualEditor extends ApiBase {
 			);
 		} else {
 			// error null, code not 200
-			$trace = ( new Exception )->getTraceAsString();
 			$this->logger->warning(
-				__METHOD__ . ": Received HTTP {$response['code']} from RESTBase for $path." .
-					" Trace: {$trace}" .
-					" Response: {$response['body']}" .
-					/** @phan-suppress-next-line PhanTypeInvalidDimOffset */
-					" Request If-Match: {$reqheaders['If-Match']}"
+				__METHOD__ . ": Received HTTP {code} from RESTBase",
+				[
+					'code' => $response['code'],
+					'trace' => ( new Exception )->getTraceAsString(),
+					'response' => $response['body'],
+					'requestPath' => $path,
+					'requestIfMatch' => $reqheaders['If-Match'] ?? '',
+				]
 			);
 			$this->dieWithError(
 				[ 'apierror-visualeditor-docserver-http', $response['code'] ],
@@ -634,7 +636,11 @@ class ApiVisualEditor extends ApiBase {
 					$badetag = $params['badetag'];
 					$goodetag = $result['etag'] ?? '';
 					$this->logger->info(
-						__METHOD__ . ": Client reported bad ETag: $badetag, expected: $goodetag"
+						__METHOD__ . ": Client reported bad ETag: {badetag}, expected: {goodetag}",
+						[
+							'badetag' => $badetag,
+							'goodetag' => $goodetag,
+						]
 					);
 				}
 				if ( $params['paction'] === 'parse' ||
diff --git a/includes/ApiVisualEditorEdit.php b/includes/ApiVisualEditorEdit.php
index 547aceaf29..a9d8503baf 100644
--- a/includes/ApiVisualEditorEdit.php
+++ b/includes/ApiVisualEditorEdit.php
@@ -288,7 +288,11 @@ class ApiVisualEditorEdit extends ApiVisualEditor {
 			"?$
 		/x', $etag ) ) {
 			$this->logger->info(
-				__METHOD__ . ": Received funny ETag from client: $etag for $path"
+				__METHOD__ . ": Received funny ETag from client: {etag}",
+				[
+					'etag' => $etag,
+					'requestPath' => $path,
+				]
 			);
 		}
 		return $this->requestRestbase(