diff -Nru spamprobe-1.4d.orig/src/database/FrequencyDBImpl_pbl.cc spamprobe-1.4d/src/database/FrequencyDBImpl_pbl.cc
--- spamprobe-1.4d.orig/src/database/FrequencyDBImpl_pbl.cc	2010-07-24 16:02:39.115311539 +0200
+++ spamprobe-1.4d/src/database/FrequencyDBImpl_pbl.cc	2010-07-24 16:10:34.885311626 +0200
@@ -260,7 +260,7 @@
                                   WordData &counts)
 {
   char key[BUFFER_SIZE];
-  int keylen = 0;
+  size_t keylen = 0;
   int rc = 0;
 
   switch (pbl_code) {