diff --git a/ChangeLog b/ChangeLog
index d0b3bb00..24aebc59 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,6 +3,12 @@
 -Name
 -changes
 
+--------------
+Apr 03, 2023
+Name: Boqin Zhang
+Changes: (xc/vdW/vdWDF/vdWDFparallelization.c)
+1. Remove a warning message
+
 --------------
 Mar 31, 2023
 Name: Xin Jing
diff --git a/src/initialization.c b/src/initialization.c
index c686ed61..1d856439 100644
--- a/src/initialization.c
+++ b/src/initialization.c
@@ -3137,7 +3137,7 @@ void write_output_init(SPARC_OBJ *pSPARC) {
     }
 
     fprintf(output_fp,"***************************************************************************\n");
-    fprintf(output_fp,"*                       SPARC (version Mar 31, 2023)                      *\n");
+    fprintf(output_fp,"*                       SPARC (version Apr 03, 2023)                      *\n");
     fprintf(output_fp,"*   Copyright (c) 2020 Material Physics & Mechanics Group, Georgia Tech   *\n");
     fprintf(output_fp,"*           Distributed under GNU General Public License 3 (GPL)          *\n");
     fprintf(output_fp,"*                   Start time: %s                  *\n",c_time_str);
diff --git a/src/xc/vdW/vdWDF/vdWDFparallelization.c b/src/xc/vdW/vdWDF/vdWDFparallelization.c
index 81ff1f16..64cc9a00 100644
--- a/src/xc/vdW/vdWDF/vdWDFparallelization.c
+++ b/src/xc/vdW/vdWDF/vdWDFparallelization.c
@@ -153,8 +153,10 @@ void vdWDF_Setup_Comms(SPARC_OBJ *pSPARC, int *gridsizes, int *phiDims) {
         MPI_Comm_size(pSPARC->zAxisComm, &FFTsize);
         int coord_newZAxisComm[3];
         MPI_Cart_coords(pSPARC->zAxisComm, FFTrank, 3, coord_newZAxisComm);
+#ifdef DEBUG
         printf("I am rank %d in zAxisComm, my coord is %d %d %d, my ZAxisVertices is %d %d, there are %d processors in it.\n",
             FFTrank, coord_newZAxisComm[0], coord_newZAxisComm[1], coord_newZAxisComm[2], pSPARC->zAxisVertices[4], pSPARC->zAxisVertices[5], FFTsize);
+#endif
     }
 
     // compose the sender and receiver for gathering thetas to do parallel FFT