diff --git a/src/script/hydra_build.pl b/src/script/hydra_build.pl
index 8cb4f4d1..f40d196f 100755
--- a/src/script/hydra_build.pl
+++ b/src/script/hydra_build.pl
@@ -7,6 +7,8 @@ use Hydra::Schema;
 use Hydra::Helper::Nix;
 
 
+STDOUT->autoflush();
+
 my $db = openHydraDB;
 
 
diff --git a/src/script/hydra_queue_runner.pl b/src/script/hydra_queue_runner.pl
index 030aeee8..bf204b28 100755
--- a/src/script/hydra_queue_runner.pl
+++ b/src/script/hydra_queue_runner.pl
@@ -14,6 +14,8 @@ my $db = openHydraDB;
 my $hydraHome = $ENV{"HYDRA_HOME"};
 die "The HYDRA_HOME environment variable is not set!\n" unless defined $hydraHome;
 
+STDOUT->autoflush();
+
 #$SIG{CHLD} = 'IGNORE';
 
 
diff --git a/src/script/hydra_scheduler.pl b/src/script/hydra_scheduler.pl
index d2afc316..07b14dea 100755
--- a/src/script/hydra_scheduler.pl
+++ b/src/script/hydra_scheduler.pl
@@ -9,6 +9,8 @@ use IPC::Run;
 use POSIX qw(strftime);
 
 
+STDOUT->autoflush();
+
 my $db = openHydraDB;