diff --git a/cmake_targets/tools/build_helper b/cmake_targets/tools/build_helper
index 40dd63bf27..4738acb7f3 100755
--- a/cmake_targets/tools/build_helper
+++ b/cmake_targets/tools/build_helper
@@ -1,4 +1,4 @@
-################################################################################
+ ################################################################################
 #
 # Copyright (c) 2015, EURECOM (www.eurecom.fr)
 # All rights reserved.
@@ -458,6 +458,8 @@ CURPID=$$
 ppid=$$
 arraycounter=1
 echo_info "** Trapped CTRL-C. Killing all subprocesses now..."
+echo_info "** Calling sync now..."
+sync 
 while true
 do
         FORLOOP=FALSE