diff --git a/benchmarks/rose.cpp b/benchmarks/rose.cpp
index 16dd02a..6d903e6 100644
--- a/benchmarks/rose.cpp
+++ b/benchmarks/rose.cpp
@@ -6,6 +6,10 @@
 
 #include <stasis/transactional.h>
 
+#define DEFINED_VAL_T
+
+//typedef int32_t val_t; // rose executable's input contains 32 bit values
+typedef int64_t val_t;   // rose executable's input contains 64 bit values
 #include "stasis/page/compression/for-impl.h"
 #include "stasis/page/compression/pstar-impl.h"
 #include "stasis/page/compression/rle-impl.h"
@@ -14,8 +18,6 @@
 
 #include "stasis/operations/lsmIterators.h"
 
-typedef int32_t val_t; // XXX needed by lsmWorkers..
-
 #include "stasis/operations/lsmWorkers.h"
 
 #undef end
diff --git a/src/stasis/operations/lsmIterators.h b/src/stasis/operations/lsmIterators.h
index ff5772b..d39773c 100644
--- a/src/stasis/operations/lsmIterators.h
+++ b/src/stasis/operations/lsmIterators.h
@@ -484,10 +484,12 @@ template <class ITERA, class ITERB, class ROW>
    return toByteArray(&t->a_);
  }
 
+#ifdef DEFINED_VAL_T
 template <class PAGELAYOUT>
-inline const byte* toByteArray(treeIterator<int,PAGELAYOUT> *const t) {
+inline const byte* toByteArray(treeIterator<val_t,PAGELAYOUT> *const t) {
   return (const byte*)&(**t);
 }
+#endif
 template <class PAGELAYOUT,class ROW>
 inline const byte* toByteArray(treeIterator<ROW,PAGELAYOUT> *const t) {
   return (**t).toByteArray();
diff --git a/src/stasis/operations/lsmWorkers.h b/src/stasis/operations/lsmWorkers.h
index 02b95be..33af312 100644
--- a/src/stasis/operations/lsmWorkers.h
+++ b/src/stasis/operations/lsmWorkers.h
@@ -15,7 +15,7 @@ namespace rose {
    cast from a TYPE to a byte *.  These were written to make it easier
    to write templates that work with different types of iterators.
 */
-inline const byte * toByteArray(int const *const *const i) {
+inline const byte * toByteArray(val_t const *const *const i) {
   return (const byte*)*i;
 }
 inline const byte * toByteArray(Tuple<val_t>::iterator * const t) {
@@ -25,7 +25,7 @@ inline const byte * toByteArray(Tuple<val_t>::iterator * const t) {
 template<class PAGELAYOUT,class ENGINE,class ITER,class ROW>
 struct insert_args {
   int comparator_idx;
-  int rowsize;typedef int32_t val_t;
+  int rowsize;
   ITER *begin;
   ITER *end;
   pageid_t(*pageAlloc)(int,void*);