diff --git a/checker/checker.sh b/checker/checker.sh
index d99f5e9211388ac85c43d7754bed533930fa70cb..dfe09fc687b78067542c3c5bd63f2f20e625243d 100755
--- a/checker/checker.sh
+++ b/checker/checker.sh
@@ -15,7 +15,7 @@ test_err()
     local temp_output=''
     temp_output="$(mktemp)"
 
-    timeout "$TIMEOUT_DURATION" xargs -a ./input/input1 -0 -I{} bash -c "$EXECUTABLE {} > $temp_output 2>&1"
+    timeout "$TIMEOUT_DURATION" bash -c "$EXECUTABLE {} > $temp_output 2>&1"
 
     diff -Zq "$temp_output" "./references/ref1" > /dev/null 2>&1
     return $?