diff --git a/net/nm-lib.pl b/net/nm-lib.pl
index 2371a5d5a..7120a789e 100644
--- a/net/nm-lib.pl
+++ b/net/nm-lib.pl
@@ -619,6 +619,7 @@ foreach my $iface (@fix) {
 sub read_nm_config
 {
 my ($f) = @_;
+&unflush_file_lines($f);	# NM may have modified this file
 my $lref = &read_file_lines($f, 1);
 my @rv;
 my $sect;