diff --git a/src/ast/rewriter/pb2bv_rewriter.cpp b/src/ast/rewriter/pb2bv_rewriter.cpp
index e4a34fc93..3862aecae 100644
--- a/src/ast/rewriter/pb2bv_rewriter.cpp
+++ b/src/ast/rewriter/pb2bv_rewriter.cpp
@@ -357,8 +357,8 @@ struct pb2bv_rewriter::imp {
 
         /**
            \brief MiniSat+ based encoding of PB constraints. 
-           The procedure is described in "Translating Pseudo-Boolean Constraints into SAT "
-           Niklas Een, Niklas Sörensson, JSAT 2006.
+           Translating Pseudo-Boolean Constraints into SAT,
+           Niklas Een, Niklas Soerensson, JSAT 2006.
          */