diff --git a/lib/Service/Install/ConfigureCheckService.php b/lib/Service/Install/ConfigureCheckService.php
index 688531b1f..06107bf76 100644
--- a/lib/Service/Install/ConfigureCheckService.php
+++ b/lib/Service/Install/ConfigureCheckService.php
@@ -81,7 +81,7 @@ public function checkSign(): array {
 	}
 
 	public function checkPoppler(): array {
-		if (shell_exec('which pdfsigf') === null) {
+		if (shell_exec('which pdfsig') === null) {
 			return [
 				(new ConfigureCheckHelper())
 					->setInfoMessage('Poppler utils not installed')