diff --git a/helper/tt2-daemon b/helper/tt2-daemon
index 25bc9019..d2e975c1 100755
--- a/helper/tt2-daemon
+++ b/helper/tt2-daemon
@@ -45,11 +45,14 @@ sub get_server_port {
 
     binmode $server => ":encoding(utf8)";
 
-    open (my $PORTFILE, '>', '/var/run/ngcpcfg.port');
-    print $PORTFILE $server->sockport();
-    close ($PORTFILE);
-
-    return $server;
+    my $NGCP_PORTFILE = $ENV{'NGCP_PORTFILE'} //= '/var/run/ngcpcfg.port';
+    if (open (my $portfile, '>', "$NGCP_PORTFILE")) {
+        print $portfile $server->sockport();
+        close ($portfile);
+        return $server;
+    } else {
+        die "Can't write to $NGCP_PORTFILE\n";
+    }
 }
 
 sub handle_connections {
diff --git a/helper/tt2-wrapper b/helper/tt2-wrapper
index 28a78d50..578b2d1f 100755
--- a/helper/tt2-wrapper
+++ b/helper/tt2-wrapper
@@ -1,9 +1,9 @@
 #!/bin/bash
 
-if [ -r /var/run/ngcpcfg.port ] ; then
-  port=$(cat /var/run/ngcpcfg.port)
+if [ -r "${NGCP_PORTFILE:-/var/run/ngcpcfg.port}" ] ; then
+  port=$(cat "${NGCP_PORTFILE}")
 else
-  echo "ERROR: Couldn't read file /var/run/ngcpcfg.port" >&2
+  echo "ERROR: Couldn't read file ${NGCP_PORTFILE}" >&2
   exit 1
 fi
 
diff --git a/scripts/build b/scripts/build
index 54008c63..9fe7aa00 100755
--- a/scripts/build
+++ b/scripts/build
@@ -38,7 +38,14 @@ fi
 
 # Kill all previous started tt2-daemon Perl processes if they were not stopped properly
 killall tt2-daemon 2>/dev/null || true
-rm -f /var/run/ngcpcfg.port
+
+if [ -n "${NGCP_PORTFILE:-}" ] ; then
+  log_debug "Using $NGCP_PORTFILE as tt2-daemon port file as set via 'NGCP_PORTFILE'."
+else
+  NGCP_PORTFILE='/var/run/ngcpcfg.port'
+fi
+
+rm -f "${NGCP_PORTFILE}"
 
 # Start new tt2-daemon Perl process
 "${HELPER}"/tt2-daemon
@@ -142,7 +149,7 @@ fi
 
 # Kill all previous started tt2-daemon Perl processes
 killall tt2-daemon 2>/dev/null || true
-rm -f /var/run/ngcpcfg.port
+rm -f "${NGCP_PORTFILE}"
 
 exit "$RC"
 
diff --git a/scripts/values b/scripts/values
index bb8721a8..9e9d7ef0 100755
--- a/scripts/values
+++ b/scripts/values
@@ -42,7 +42,13 @@ TT_WRAPPER="${HELPER}/tt2-wrapper"
 
 # Kill all previous started tt2-daemon Perl processes if they were not stopped properly
 killall tt2-daemon 2>/dev/null || true
-rm -f /var/run/ngcpcfg.port
+
+if [ -n "${NGCP_PORTFILE:-}" ] ; then
+  log_debug "Using $NGCP_PORTFILE as tt2-daemon port file as set via 'NGCP_PORTFILE'."
+else
+  NGCP_PORTFILE='/var/run/ngcpcfg.port'
+fi
+rm -f "${NGCP_PORTFILE}"
 
 # Start new tt2-daemon Perl process
 "${HELPER}"/tt2-daemon --quiet
@@ -71,7 +77,7 @@ fi
 
 # Kill all previous started tt2-daemon Perl processes
 killall tt2-daemon 2>/dev/null || true
-rm -f /var/run/ngcpcfg.port
+rm -f "${NGCP_PORTFILE}"
 
 exit "$RC"