diff -r 59358f991c00 Modules/_sre.c
--- a/Modules/_sre.c	Sat Dec 15 19:22:30 2012 +0100
+++ b/Modules/_sre.c	Sat Dec 15 19:57:34 2012 +0000
@@ -1329,9 +1329,9 @@
                         RETURN_FAILURE;
                     while (p < e) {
                         if (ctx->ptr >= end ||
-                            state->lower(SRE_CHARGET(state, ctx->ptr, 0)) != state->lower(*p))
+                            state->lower(SRE_CHARGET(state, ctx->ptr, 0)) != state->lower(SRE_CHARGET(state, p, 0)))
                             RETURN_FAILURE;
-                        p++;
+                        p += state->charsize;
                         ctx->ptr += state->charsize;
                     }
                 }