diff --git a/include/devil1geo.h b/include/devil1geo.h
index e68466f..fbe4db4 100644
--- a/include/devil1geo.h
+++ b/include/devil1geo.h
@@ -87,7 +87,7 @@ bool getmeshheader(struct MeshHeader**, unsigned int i, const char * const);
 
 // ** = 'pass by reference' of a pointer to struct
 bool getmeshbatch(struct Batch*, 
-                  struct MeshHeader*, 
+                  unsigned int offset, 
                   const char * const);
 
 #endif
diff --git a/src/devil1geo.c b/src/devil1geo.c
index 3edad51..7aa5d7b 100644
--- a/src/devil1geo.c
+++ b/src/devil1geo.c
@@ -69,13 +69,12 @@ bool getmeshheader(struct MeshHeader **hs,
 }
 
 bool getmeshbatch(struct Batch *b, 
-                  struct MeshHeader *h, 
+                  unsigned int offset, 
                   const char * const filedata) {
     bool done = false;
-    if (b == NULL || h == NULL || filedata == NULL) {
+    if (b == NULL || filedata == NULL) {
         return done;
     }
-    unsigned int offset = h -> offsetBatches;
     struct BatchData  *d1 = NULL;
     struct VertexData d2;
     d1            = (struct BatchData*)  (filedata + offset);
diff --git a/test/main.c b/test/main.c
index ca53b4c..94bc145 100644
--- a/test/main.c
+++ b/test/main.c
@@ -117,14 +117,15 @@ void extractmeshes(const char *filedata,
     unsigned int i;
     unsigned int j;
     bool ok;
-    //h -> numMesh
+    //for (i = 0; i < 5; i++) {
     for (i = 0; i < h -> numMesh; i++) {
         ok = getmeshheader(&mh, i, filedata);
         if (ok) {
-  //          for (j = 0; j < mh -> numBatch; j++) {
-                getmeshbatch(&b, mh, filedata);
+            for (j = 0; j < mh -> numBatch; j++) {
+                unsigned int offset = mh->offsetBatches + j * sizeof(struct BatchData);
+                getmeshbatch(&b, offset, filedata);
                 printmeshbatch(&b);
-  //          } // end for
+            } // end for
         } // end if
     } // end for
 }