diff --git a/Makefile b/Makefile
index 498ab38..34b7e52 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 CC=gcc
-CFLAGS=-Wall -pedantic -g -DUNIX_HOST
+CFLAGS=-Wall -pedantic -g -DUNIX_HOST -DNATIVE_POINTERS
 LIBS=#-lm
 
 TARGET	= picoc
diff --git a/expression.c b/expression.c
index 4d5600e..7f96da0 100644
--- a/expression.c
+++ b/expression.c
@@ -274,7 +274,7 @@ void ExpressionAssignToPointer(struct ParseState *Parser, struct Value *ToValue,
     else if (AllowPointerCoercion && IS_NUMERIC_COERCIBLE(FromValue))
     {
         /* assign integer to native pointer */
-        ToValue->Val->NativePointer = COERCE_INTEGER(FromValue);
+        ToValue->Val->NativePointer = (void *)COERCE_INTEGER(FromValue);
     }
 #endif
     else