diff --git a/modules/core/src/matmul.simd.hpp b/modules/core/src/matmul.simd.hpp
index 058666485a..fb0c6ddefe 100644
--- a/modules/core/src/matmul.simd.hpp
+++ b/modules/core/src/matmul.simd.hpp
@@ -394,19 +394,6 @@ GEMMSingleMul( const T* a_data, size_t a_step,
             {
                 WT al(a_data[k]);
                 j=0;
-                 #if CV_ENABLE_UNROLLED
-                for(; j <= m - 4; j += 4 )
-                {
-                    WT t0 = d_buf[j] + WT(b_data[j])*al;
-                    WT t1 = d_buf[j+1] + WT(b_data[j+1])*al;
-                    d_buf[j] = t0;
-                    d_buf[j+1] = t1;
-                    t0 = d_buf[j+2] + WT(b_data[j+2])*al;
-                    t1 = d_buf[j+3] + WT(b_data[j+3])*al;
-                    d_buf[j+2] = t0;
-                    d_buf[j+3] = t1;
-                }
-                #endif
                 for( ; j < m; j++ )
                     d_buf[j] += WT(b_data[j])*al;
             }