diff --git a/startup.script_common b/startup.script_common
index 8a01436..994e95c 100644
--- a/startup.script_common
+++ b/startup.script_common
@@ -16,9 +16,6 @@ putenv "SRBASE=/ioc/data"
 sprintf STRINGBUFFER, "EPICS_DRIVER_PATH=.:bin/%s_%s:bin:snl:../bin:%s", EPICS, EPICS_HOST_ARCH, EPICS_MODULES
 putenv STRINGBUFFER
 
-sprintf STRINGBUFFER, "FFT_WISDOM_DIR=/ioc/data/%s", IOC
-putenv STRINGBUFFER
-
 STREAM_PROTOCOL_DIR=malloc(80)
 sprintf STREAM_PROTOCOL_DIR, "%s/cfg", HOME