diff --git a/installers/charmed_install.sh b/installers/charmed_install.sh
index c686597..bd714a6 100755
--- a/installers/charmed_install.sh
+++ b/installers/charmed_install.sh
@@ -450,8 +450,8 @@
     version: 3}'
 }
 
-DEFAULT_IF=`ip route list match 0.0.0.0 | awk '{print $5}'`
-DEFAULT_IP=`ip -o -4 a |grep ${DEFAULT_IF}|awk '{split($4,a,"/"); print a[1]}'`
+DEFAULT_IF=`ip route list match 0.0.0.0 | awk '{print $5; exit}'`
+DEFAULT_IP=`ip -o -4 a |grep ${DEFAULT_IF}|awk '{split($4,a,"/"); print a[1]; exit}'`
 
 check_arguments $@
 mkdir -p ~/.osm
diff --git a/installers/full_install_osm.sh b/installers/full_install_osm.sh
index 27e487f..7594984 100755
--- a/installers/full_install_osm.sh
+++ b/installers/full_install_osm.sh
@@ -647,7 +647,7 @@
     DEFAULT_IF=$(ip route list|awk '$1=="default" {print $5; exit}')
     [ -z "$DEFAULT_IF" ] && DEFAULT_IF=$(route -n |awk '$1~/^0.0.0.0/ {print $8; exit}')
     [ -z "$DEFAULT_IF" ] && FATAL "Not possible to determine the interface with the default route 0.0.0.0"
-    DEFAULT_IP=`ip -o -4 a s ${DEFAULT_IF} |awk '{split($4,a,"/"); print a[1]}'`
+    DEFAULT_IP=`ip -o -4 a s ${DEFAULT_IF} |awk '{split($4,a,"/"); print a[1]; exit}'`
     [ -z "$DEFAULT_IP" ] && FATAL "Not possible to determine the IP address of the interface with the default route"
 
     # configure apt proxy