properly initialise blues in canonicalisation table

diff --git a/pctb/structure.c b/pctb/structure.c
index 859c7d91d9fa3f3e0b8722aed2f942ed7c8ec190..a0b1060d9c48475c053c16ef35c88d1806cf03a0 100644 (file)
--- a/pctb/structure.c
+++ b/pctb/structure.c
@@ -112,7 +112,7 @@ void canon_colour_prepare(void) {
     CanonColourInfoBlues *blues= greens->green2[g];
     if (!blues) {
       blues= greens->green2[g]= mmalloc(sizeof(*blues));
-      memset(blues, '?', sizeof(blues));
+      memset(blues, '?', sizeof(*blues));
     }
 
     blues->blue2[b]= cci->c;