--- tools/pvscan.c
+++ tools/pvscan.c	2007/11/22 12:24:51
@@ -166,7 +166,7 @@
 			size_new += pv_size(pv);
 			size_total += pv_size(pv);
 		} else
-			size_total += pv_pe_count(pv) * pv_pe_size(pv);
+			size_total += (uint64_t)pv_pe_count(pv) * pv_pe_size(pv);
 	}
 
 	/* find maximum pv name length */