diff --git a/src/afs/IRIX/osi_crypto.c b/src/afs/IRIX/osi_crypto.c
new file mode 100644
index 0000000000..ee35f92e09
--- /dev/null
+++ b/src/afs/IRIX/osi_crypto.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2010 Your Filesystem Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <afsconfig.h>
+#include "afs/param.h"
+
+#include "afs/sysincludes.h"
+#include "afsincludes.h"
+
+int
+osi_readRandom(void *data, afs_size_t len) {
+    osi_Panic("This platform doesn't have a cryptographic PRNG in the kernel");
+    return 0;
+}
diff --git a/src/libafs/MakefileProto.IRIX.in b/src/libafs/MakefileProto.IRIX.in
index 88f7aa92e8..310db13fb3 100644
--- a/src/libafs/MakefileProto.IRIX.in
+++ b/src/libafs/MakefileProto.IRIX.in
@@ -16,6 +16,7 @@ INSTALL_SCRIPT = @INSTALL_SCRIPT@
 # OS specific object files:
 AFS_OS_OBJS = \
 	base64.o \
+	osi_crypto.o \
 	osi_gcpags.o \
 	osi_groups.o \
 	osi_idbg.o \