diff --git a/scripts/tracetool/backend/dtrace.py b/scripts/tracetool/backend/dtrace.py
index 79505c6b1a..c29ffb4fa0 100644
--- a/scripts/tracetool/backend/dtrace.py
+++ b/scripts/tracetool/backend/dtrace.py
@@ -6,7 +6,7 @@ DTrace/SystemTAP backend.
 """
 
 __author__     = "Lluís Vilanova <vilanova@ac.upc.edu>"
-__copyright__  = "Copyright 2012-2016, Lluís Vilanova <vilanova@ac.upc.edu>"
+__copyright__  = "Copyright 2012-2017, Lluís Vilanova <vilanova@ac.upc.edu>"
 __license__    = "GPL version 2 or (at your option) any later version"
 
 __maintainer__ = "Stefan Hajnoczi"
@@ -41,6 +41,6 @@ def generate_h_begin(events, group):
 
 
 def generate_h(event, group):
-    out('        QEMU_%(uppername)s(%(argnames)s);',
+    out('    QEMU_%(uppername)s(%(argnames)s);',
         uppername=event.name.upper(),
         argnames=", ".join(event.args.names()))
diff --git a/scripts/tracetool/backend/ftrace.py b/scripts/tracetool/backend/ftrace.py
index db9fe7ad57..dd0eda4441 100644
--- a/scripts/tracetool/backend/ftrace.py
+++ b/scripts/tracetool/backend/ftrace.py
@@ -29,17 +29,17 @@ def generate_h(event, group):
     if len(event.args) > 0:
         argnames = ", " + argnames
 
-    out('        {',
-        '            char ftrace_buf[MAX_TRACE_STRLEN];',
-        '            int unused __attribute__ ((unused));',
-        '            int trlen;',
-        '            if (trace_event_get_state(%(event_id)s)) {',
-        '                trlen = snprintf(ftrace_buf, MAX_TRACE_STRLEN,',
-        '                                 "%(name)s " %(fmt)s "\\n" %(argnames)s);',
-        '                trlen = MIN(trlen, MAX_TRACE_STRLEN - 1);',
-        '                unused = write(trace_marker_fd, ftrace_buf, trlen);',
-        '            }',
+    out('    {',
+        '        char ftrace_buf[MAX_TRACE_STRLEN];',
+        '        int unused __attribute__ ((unused));',
+        '        int trlen;',
+        '        if (trace_event_get_state(%(event_id)s)) {',
+        '            trlen = snprintf(ftrace_buf, MAX_TRACE_STRLEN,',
+        '                             "%(name)s " %(fmt)s "\\n" %(argnames)s);',
+        '            trlen = MIN(trlen, MAX_TRACE_STRLEN - 1);',
+        '            unused = write(trace_marker_fd, ftrace_buf, trlen);',
         '        }',
+        '    }',
         name=event.name,
         args=event.args,
         event_id="TRACE_" + event.name.upper(),
diff --git a/scripts/tracetool/backend/log.py b/scripts/tracetool/backend/log.py
index 4f4a4d38b1..54f0a69886 100644
--- a/scripts/tracetool/backend/log.py
+++ b/scripts/tracetool/backend/log.py
@@ -6,7 +6,7 @@ Stderr built-in backend.
 """
 
 __author__     = "Lluís Vilanova <vilanova@ac.upc.edu>"
-__copyright__  = "Copyright 2012-2016, Lluís Vilanova <vilanova@ac.upc.edu>"
+__copyright__  = "Copyright 2012-2017, Lluís Vilanova <vilanova@ac.upc.edu>"
 __license__    = "GPL version 2 or (at your option) any later version"
 
 __maintainer__ = "Stefan Hajnoczi"
@@ -35,14 +35,15 @@ def generate_h(event, group):
     else:
         cond = "trace_event_get_state(%s)" % ("TRACE_" + event.name.upper())
 
-    out('        if (%(cond)s) {',
-        '            struct timeval _now;',
-        '            gettimeofday(&_now, NULL);',
-        '            qemu_log_mask(LOG_TRACE, "%%d@%%zd.%%06zd:%(name)s " %(fmt)s "\\n",',
-        '                          getpid(),',
-        '                          (size_t)_now.tv_sec, (size_t)_now.tv_usec',
-        '                          %(argnames)s);',
-        '        }',
+    out('    if (%(cond)s) {',
+        '        struct timeval _now;',
+        '        gettimeofday(&_now, NULL);',
+        '        qemu_log_mask(LOG_TRACE,',
+        '                      "%%d@%%zd.%%06zd:%(name)s " %(fmt)s "\\n",',
+        '                      getpid(),',
+        '                      (size_t)_now.tv_sec, (size_t)_now.tv_usec',
+        '                      %(argnames)s);',
+        '    }',
         cond=cond,
         name=event.name,
         fmt=event.fmt.rstrip("\n"),
diff --git a/scripts/tracetool/backend/simple.py b/scripts/tracetool/backend/simple.py
index 85f61028e2..9554673cb9 100644
--- a/scripts/tracetool/backend/simple.py
+++ b/scripts/tracetool/backend/simple.py
@@ -6,7 +6,7 @@ Simple built-in backend.
 """
 
 __author__     = "Lluís Vilanova <vilanova@ac.upc.edu>"
-__copyright__  = "Copyright 2012-2014, Lluís Vilanova <vilanova@ac.upc.edu>"
+__copyright__  = "Copyright 2012-2017, Lluís Vilanova <vilanova@ac.upc.edu>"
 __license__    = "GPL version 2 or (at your option) any later version"
 
 __maintainer__ = "Stefan Hajnoczi"
@@ -37,7 +37,7 @@ def generate_h_begin(events, group):
 
 
 def generate_h(event, group):
-    out('        _simple_%(api)s(%(args)s);',
+    out('    _simple_%(api)s(%(args)s);',
         api=event.api(),
         args=", ".join(event.args.names()))
 
diff --git a/scripts/tracetool/backend/syslog.py b/scripts/tracetool/backend/syslog.py
index b8ff2790c4..1ce627f0fc 100644
--- a/scripts/tracetool/backend/syslog.py
+++ b/scripts/tracetool/backend/syslog.py
@@ -35,9 +35,9 @@ def generate_h(event, group):
     else:
         cond = "trace_event_get_state(%s)" % ("TRACE_" + event.name.upper())
 
-    out('        if (%(cond)s) {',
-        '            syslog(LOG_INFO, "%(name)s " %(fmt)s %(argnames)s);',
-        '        }',
+    out('    if (%(cond)s) {',
+        '        syslog(LOG_INFO, "%(name)s " %(fmt)s %(argnames)s);',
+        '    }',
         cond=cond,
         name=event.name,
         fmt=event.fmt.rstrip("\n"),
diff --git a/scripts/tracetool/backend/ust.py b/scripts/tracetool/backend/ust.py
index 4594db6128..5498950b83 100644
--- a/scripts/tracetool/backend/ust.py
+++ b/scripts/tracetool/backend/ust.py
@@ -6,7 +6,7 @@ LTTng User Space Tracing backend.
 """
 
 __author__     = "Lluís Vilanova <vilanova@ac.upc.edu>"
-__copyright__  = "Copyright 2012-2016, Lluís Vilanova <vilanova@ac.upc.edu>"
+__copyright__  = "Copyright 2012-2017, Lluís Vilanova <vilanova@ac.upc.edu>"
 __license__    = "GPL version 2 or (at your option) any later version"
 
 __maintainer__ = "Stefan Hajnoczi"
@@ -30,6 +30,6 @@ def generate_h(event, group):
     if len(event.args) > 0:
         argnames = ", " + argnames
 
-    out('        tracepoint(qemu, %(name)s%(tp_args)s);',
+    out('    tracepoint(qemu, %(name)s%(tp_args)s);',
         name=event.name,
         tp_args=argnames)
