diff --git a/include/qb/qblog.h b/include/qb/qblog.h
index 7961209..9b1b0cf 100644
--- a/include/qb/qblog.h
+++ b/include/qb/qblog.h
@@ -478,6 +478,7 @@ void qb_log_tags_stringify_fn_set(qb_log_tags_stringify_fn fn);
  * %b BUFFER
  * %g TAGS
  * %N name (passed into qb_log_init)
+ * %P PID
  *
  * any number between % and character specify field length to pad or chop
  */
diff --git a/lib/log_format.c b/lib/log_format.c
index a626cae..70eaedb 100644
--- a/lib/log_format.c
+++ b/lib/log_format.c
@@ -253,6 +253,11 @@ qb_log_target_format(int32_t target,
 				}
 				break;
 
+			case 'P':
+				snprintf(line_no, 30, "%d", getpid());
+				p = line_no;
+				break;
+
 			default:
 				p = "";
 				break;