diff --git a/src/im2col.h b/src/im2col.h
index f510d61e..35f0039a 100644
--- a/src/im2col.h
+++ b/src/im2col.h
@@ -63,10 +63,9 @@ void convolve_gpu(float *input, float *weights, float *output, int in_w, int in_
 void convolve_bin_gpu(float *input, float *weights, float *output, int in_w, int in_h, int in_c, int n, int size, int pad,
     int new_lda, float *mean_arr_gpu);
 
-void convolve_bin_cpu(float *input, float *weights, float *output, int in_w, int in_h, int in_c, int n,
-    int size, int pad, int new_lda, float *mean_arr_gpu);
+//void convolve_bin_cpu(float *input, float *weights, float *output, int in_w, int in_h, int in_c, int n, int size, int pad, int new_lda, float *mean_arr_gpu);
 
-void convolve_cpu(float *input, float *weights, float *output, int in_w, int in_h, int in_c, int n, int size, int pad);
+//void convolve_cpu(float *input, float *weights, float *output, int in_w, int in_h, int in_c, int n, int size, int pad);
 
 #endif
 #ifdef __cplusplus
diff --git a/src/im2col_kernels.cu b/src/im2col_kernels.cu
index 90af12b6..da952df5 100644
--- a/src/im2col_kernels.cu
+++ b/src/im2col_kernels.cu
@@ -1818,7 +1818,7 @@ void gemm_nn_custom_bin_mean_transposed_gpu(int M, int N, int K,
 }
 // --------------------------------
 
-
+/*
 void convolve_cpu(float *input, float *weights, float *output, int in_w, int in_h, int in_c, int n, int size, int pad)
 {
     int fil;
@@ -1929,6 +1929,7 @@ void convolve_bin_cpu(float *input, float *weights, float *output, int in_w, int
                 }
     }
 }
+*/
 // --------------------------------
 
 __global__ void convolve_gpu_kernel(float *input, float *weights, float *output, int in_w, int in_h, int in_c, int n, int size, int pad)