diff -r 7362ebd40f26 -r 08543a9ca288 thermferm/slcd.c
--- a/thermferm/slcd.c	Thu Feb 25 20:12:27 2016 +0100
+++ b/thermferm/slcd.c	Thu Feb 25 20:26:40 2016 +0100
@@ -136,11 +136,11 @@
 
 
 
-void slcdCharDef(int fd, int index, unsigned char data[8])
+void slcdCharDef(int fd, int idx, unsigned char data[8])
 {
     int		i;
 
-    putLCDsocket(fd, SLCD_CGRAM | ((index & 7) << 3));
+    putLCDsocket(fd, SLCD_CGRAM | ((idx & 7) << 3));
     for (i = 0 ; i < 8 ; ++i)
 	putLCDsocket(fd, data[i]);
 }