diff --git a/bindings-DSL.cabal b/bindings-DSL.cabal
--- a/bindings-DSL.cabal
+++ b/bindings-DSL.cabal
@@ -17,7 +17,7 @@
   .
   This package contains no Haskell code, only C header files
   designed for hsc2hs.
-version: 1.0.8
+version: 1.0.9
 license: BSD3
 license-file: LICENSE
 maintainer: Maurício C. Antunes <mauricio.antunes@gmail.com>
diff --git a/bindings.dsl.h b/bindings.dsl.h
--- a/bindings.dsl.h
+++ b/bindings.dsl.h
@@ -216,7 +216,7 @@
      for (i=0; i < bc_fielddata.n; i++) if (bc_fielddata.is_fam[i]) \
         { \
          bc_famaccess(typename,bc_fielddata.fname[i]); \
-         printf(" p = plusPtr p %d\n",bc_fielddata.offset[i]); \
+         printf(" p = plusPtr p %zu\n",bc_fielddata.offset[i]); \
          bc_famaccess(typename,bc_fielddata.fname[i]); \
          printf(" :: Ptr (");bc_conid(typename);printf(") -> "); \
          printf("Ptr (");bc_typemarkup(bc_fielddata.ftype[i]);printf(")\n"); \