diff --git a/src/include/utils/cash.h b/src/include/utils/cash.h
index 034a79ac54b6a2f824743251b432a51d78cf5e12..02b6c6424d95268ca0b14df51d94e800de6a71da 100644
--- a/src/include/utils/cash.h
+++ b/src/include/utils/cash.h
@@ -10,7 +10,7 @@
 #define CASH_H
 
 /* if we store this as 4 bytes, we better make it int, not long, bjm */
-typedef signed int Cash;
+typedef int32 Cash;
 
 extern Datum cash_in(PG_FUNCTION_ARGS);
 extern Datum cash_out(PG_FUNCTION_ARGS);