diff --git a/boost.changes b/boost.changes
index 6c398d2..9869547 100644
--- a/boost.changes
+++ b/boost.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Jul 22 12:22:13 UTC 2014 - fcrozat@suse.com
+
+- use only JOBS=2 to avoid gcc being killed with OOM when memory is
+  between 4G and 7G.
+
 -------------------------------------------------------------------
 Tue Apr 29 14:34:41 UTC 2014 - dvaleev@suse.com
 
diff --git a/boost.spec b/boost.spec
index a61850b..19b4181 100644
--- a/boost.spec
+++ b/boost.spec
@@ -466,6 +466,9 @@ Mem=$(grep MemTotal /proc/meminfo | awk '{print $2}')
 # require 4G for parallel build
 if test "$Mem" -lt 4000000; then
   JOBS=1
+elif test "$Mem" -lt 7000000; then
+# lower number of jobs if memory is less than 7G but more than 4G
+   JOBS=2
 fi
 if test "$JOBS" = 0; then
   JOBS=1