diff --git a/apps/files_external/lib/Lib/Storage/SMB.php b/apps/files_external/lib/Lib/Storage/SMB.php
index e5897c26531b3..f9e495d2a56f7 100644
--- a/apps/files_external/lib/Lib/Storage/SMB.php
+++ b/apps/files_external/lib/Lib/Storage/SMB.php
@@ -693,7 +693,7 @@ public function file_exists($path) {
 			// Case sensitive filesystem doesn't matter for root directory
 			if ($this->caseSensitive === false && $path !== '') {
 				$filename = basename($path);
-				$siblings = $this->getDirectoryContent(dirname($this->buildPath($path)));
+				$siblings = $this->getDirectoryContent(dirname($path));
 				foreach ($siblings as $sibling) {
 					if ($sibling['name'] === $filename) {
 						return true;