diff --git a/vice/configure.ac b/vice/configure.ac
index 8850dba994b..5fa4491bc32 100755
--- a/vice/configure.ac
+++ b/vice/configure.ac
@@ -423,6 +423,8 @@ AM_PROG_AS
 
 dnl Other build environment checks
 AC_SYS_LARGEFILE
+AC_TYPE_SSIZE_T
+
 
 AC_CONFIG_HEADERS([src/config.h])