diff --git a/src/layer/arm/gemm_arm.cpp b/src/layer/arm/gemm_arm.cpp
index f6ea6bc87c8..aac5e73556a 100644
--- a/src/layer/arm/gemm_arm.cpp
+++ b/src/layer/arm/gemm_arm.cpp
@@ -49,7 +49,7 @@ void pack_A_tile(const Mat& A, Mat& AT, int i, int max_ii, int k, int max_kk)
 {
     const int elempack = A.elempack;
     const int A_hstep = A.dims == 3 ? (int)A.cstep : A.w;
-
+ 
     float* pp = AT;
 
     int ii = 0;