diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index 0f32cbe7ee..3110f8ca4e 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -518,6 +518,18 @@ Bug Fixes since HDF5-1.10.1 release
 
     Tools
     -----
+    - h5repack
+
+      h5repack changes the chunk parameters when a change of layout is not
+      specified and a filter is applied.
+
+      HDFFV-10297, HDFFV-10319 reworked code for h5repack and h5diff code
+      in the tools library. The check for an existing layout was incorrectly
+      placed into an if block and not executed. The check was moved into
+      the normal path of the function.
+
+      (ADB - 2018/02/21, HDFFV-10412)
+
     - h5dump
 
       the tools library will hide the error stack during file open.
diff --git a/tools/src/h5repack/h5repack_filters.c b/tools/src/h5repack/h5repack_filters.c
index ae0bfd5b4a..0092abca89 100644
--- a/tools/src/h5repack/h5repack_filters.c
+++ b/tools/src/h5repack/h5repack_filters.c
@@ -280,25 +280,6 @@ int apply_filters(const char* name, /* object name from traverse list */
         *has_filter = 1;
         if (H5Premove_filter(dcpl_id, H5Z_FILTER_ALL) < 0)
             HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Premove_filter failed");
-
-        /*-------------------------------------------------------------------------
-         * check if there is an existent chunk
-         * read it only if there is not a requested layout
-         *-------------------------------------------------------------------------
-         */
-        if (obj.layout == -1) {
-            if ((layout = H5Pget_layout(dcpl_id)) < 0)
-                HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Pget_layout failed");
-
-            if (layout == H5D_CHUNKED) {
-                if ((rank = H5Pget_chunk(dcpl_id, NELMTS(chsize), chsize/*out*/)) < 0)
-                    HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Pget_chunk failed");
-                obj.layout = H5D_CHUNKED;
-                obj.chunk.rank = rank;
-                for (i = 0; i < rank; i++)
-                    obj.chunk.chunk_lengths[i] = chsize[i];
-            }
-        }
     }
     else if(nfilters) {
         *has_filter = 1;
@@ -306,6 +287,25 @@ int apply_filters(const char* name, /* object name from traverse list */
             HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "aux_copy_obj failed");
     }
 
+    /*-------------------------------------------------------------------------
+     * check if there is an existent chunk
+     * read it only if there is not a requested layout
+     *-------------------------------------------------------------------------
+     */
+    if (obj.layout == -1) {
+        if ((layout = H5Pget_layout(dcpl_id)) < 0)
+            HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Pget_layout failed");
+
+        if (layout == H5D_CHUNKED) {
+            if ((rank = H5Pget_chunk(dcpl_id, NELMTS(chsize), chsize/*out*/)) < 0)
+                HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Pget_chunk failed");
+            obj.layout = H5D_CHUNKED;
+            obj.chunk.rank = rank;
+            for (i = 0; i < rank; i++)
+                obj.chunk.chunk_lengths[i] = chsize[i];
+        }
+    }
+
     /*-------------------------------------------------------------------------
      * the type of filter and additional parameter
      * type can be one of the filters
diff --git a/tools/test/h5repack/testfiles/deflate_limit.h5repack_layout.h5.ddl b/tools/test/h5repack/testfiles/deflate_limit.h5repack_layout.h5.ddl
index 1dcc742302..75f54faa7a 100644
--- a/tools/test/h5repack/testfiles/deflate_limit.h5repack_layout.h5.ddl
+++ b/tools/test/h5repack/testfiles/deflate_limit.h5repack_layout.h5.ddl
@@ -76,8 +76,8 @@ GROUP "/" {
       DATATYPE  H5T_STD_I32LE
       DATASPACE  SIMPLE { ( 40, 20 ) / ( 40, 20 ) }
       STORAGE_LAYOUT {
-         CHUNKED ( 40, 20 )
-         SIZE 1150 (2.783:1 COMPRESSION)
+         CHUNKED ( 20, 10 )
+         SIZE 1283 (2.494:1 COMPRESSION)
       }
       FILTERS {
          COMPRESSION DEFLATE { LEVEL 1 }
diff --git a/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_test.ddl b/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_test.ddl
index 4856f84857..a8b4562638 100644
--- a/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_test.ddl
+++ b/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_test.ddl
@@ -92,7 +92,7 @@ GROUP "/" {
       DATATYPE  H5T_STD_I32LE
       DATASPACE  SIMPLE { ( 40, 20 ) / ( 40, 20 ) }
       STORAGE_LAYOUT {
-         CHUNKED ( 40, 20 )
+         CHUNKED ( 20, 10 )
          SIZE 3200 (1.000:1 COMPRESSION)
       }
       FILTERS {
diff --git a/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_version_test.ddl b/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_version_test.ddl
index f79fa93c16..561ab14b32 100644
--- a/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_version_test.ddl
+++ b/tools/test/h5repack/testfiles/h5repack_layout.h5-plugin_version_test.ddl
@@ -92,7 +92,7 @@ GROUP "/" {
       DATATYPE  H5T_STD_I32LE
       DATASPACE  SIMPLE { ( 40, 20 ) / ( 40, 20 ) }
       STORAGE_LAYOUT {
-         CHUNKED ( 40, 20 )
+         CHUNKED ( 20, 10 )
          SIZE 3200 (1.000:1 COMPRESSION)
       }
       FILTERS {