diff --git a/paddle/gserver/layers/DetectionUtil.cpp b/paddle/gserver/layers/DetectionUtil.cpp
index 7c18295385de6ec1a226d3315324a9fe0866a759..070bc0bce61059f05cbe725d177a31861a1b4011 100644
--- a/paddle/gserver/layers/DetectionUtil.cpp
+++ b/paddle/gserver/layers/DetectionUtil.cpp
@@ -536,8 +536,7 @@ void getDetectionOutput(const real* confData,
   MatrixPtr outBuffer;
   Matrix::resizeOrCreate(outBuffer, numKept, 7, false, false);
   real* bufferData = outBuffer->getData();
-  for (size_t i = 0; i < 7; i++)
-    bufferData[i] = -1;
+  for (size_t i = 0; i < 7; i++) bufferData[i] = -1;
   size_t count = 0;
   for (size_t n = 0; n < batchSize; ++n) {
     for (map<size_t, vector<size_t>>::const_iterator it = allIndices[n].begin();