diff --git a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_dis.c b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_dis.c
index c0af36420e0c..0c41bda0aac9 100644
--- a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_dis.c
+++ b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_dis.c
@@ -499,7 +499,7 @@ dt_dis(const dtrace_difo_t *dp, FILE *fp)
 		if (v->dtdv_flags & DIFV_F_MOD)
 			(void) strcat(flags, "/w");
 
-		(void) fprintf(fp, "%-16s %-4x %-3s %-3s %-4s %s\n",
+		(void) fprintf(fp, "%-16s %-4u %-3s %-3s %-4s %s\n",
 		    &dp->dtdo_strtab[v->dtdv_name],
 		    v->dtdv_id, kind, scope, flags + 1,
 		    dt_dis_typestr(&v->dtdv_type, type, sizeof (type)));