diff --git a/BUILD-INSTRUCTIONS.txt b/BUILD-INSTRUCTIONS.txt
index 72944c316f..01c41d2f35 100644
--- a/BUILD-INSTRUCTIONS.txt
+++ b/BUILD-INSTRUCTIONS.txt
@@ -33,7 +33,7 @@ you DO NOT override the MACHINE_TYPE variable on the command line when
 you do so, as this can lead to problems locating the library.
 
  ./regenerate-makefiles.sh
- ./configure --with-srilm=/path/to/srilm
+ ./configure [--with-srilm=/path/to/srilm] [--with-irstlm=/path/to/irstlm]
 
 The resulting decoder binary will be moses-cmd/src/moses .
 
@@ -46,7 +46,7 @@ you DO NOT override the MACHINE_TYPE variable on the command line when
 you do so, as this can lead to problems locating the library.
 
  ./regenerate-makefiles.sh
- ./configure --with-irstlm=/path/to/irstlm
+ ./configure [--with-srilm=/path/to/srilm] [--with-irstlm=/path/to/irstlm]
 
 The resulting decoder binary will be moses-cmd/src/moses .
 
diff --git a/regenerate-makefiles.sh b/regenerate-makefiles.sh
index ca30075ed0..5bfd6b7dc1 100755
--- a/regenerate-makefiles.sh
+++ b/regenerate-makefiles.sh
@@ -40,7 +40,7 @@ $AUTOMAKE || die "automake failed"
 
 echo
 echo "You should now be able to configure and build:"
-echo "   ./configure --with-srilm=/path/to/srilm"
+echo "   ./configure [--with-srilm=/path/to/srilm] [--with-irstlm=/path/to/irstlm]"
 echo "   make -j 4"
 echo