diff --git a/gerrit-pgm/src/main/java/com/google/gerrit/pgm/util/ErrorLogFile.java b/gerrit-pgm/src/main/java/com/google/gerrit/pgm/util/ErrorLogFile.java
index 8a0d9a1c81..95caf25389 100644
--- a/gerrit-pgm/src/main/java/com/google/gerrit/pgm/util/ErrorLogFile.java
+++ b/gerrit-pgm/src/main/java/com/google/gerrit/pgm/util/ErrorLogFile.java
@@ -81,7 +81,7 @@ public class ErrorLogFile {
 
     if (text) {
       root.addAppender(SystemLog.createAppender(logdir, LOG_NAME,
-          new PatternLayout("[%d] %-5p %c %x: %m%n")));
+          new PatternLayout("[%d] [%t] %-5p %c %x: %m%n")));
     }
 
     if (json) {
diff --git a/gerrit-war/src/main/resources/log4j.properties b/gerrit-war/src/main/resources/log4j.properties
index ef64f3b547..8bc9bb2b7a 100644
--- a/gerrit-war/src/main/resources/log4j.properties
+++ b/gerrit-war/src/main/resources/log4j.properties
@@ -16,7 +16,7 @@ log4j.rootCategory=INFO, stderr
 log4j.appender.stderr=org.apache.log4j.ConsoleAppender
 log4j.appender.stderr.target=System.err
 log4j.appender.stderr.layout=org.apache.log4j.PatternLayout
-log4j.appender.stderr.layout.ConversionPattern=[%d] %-5p %c %x: %m%n
+log4j.appender.stderr.layout.ConversionPattern=[%d] [%t] %-5p %c %x: %m%n
 
 # Silence non-critical messages from MINA SSHD.
 #