diff --git a/docs/function-guide.md b/docs/function-guide.md
index c5496b43..8d128987 100644
--- a/docs/function-guide.md
+++ b/docs/function-guide.md
@@ -342,7 +342,9 @@ method instead.
 
 ```golang
 // moduleName is already set to "math" by the math package. Do this in `init`.
-funcs.ModuleRegister(moduleName, "cos", func() interfaces.Func { return &CosFunc{} })
+funcs.ModuleRegister(moduleName, "cos", func() interfaces.Func {
+	return &CosFunc{}
+})
 ```
 
 ### Composite functions
diff --git a/docs/puppet-guide.md b/docs/puppet-guide.md
index 46ec486f..ec47413a 100644
--- a/docs/puppet-guide.md
+++ b/docs/puppet-guide.md
@@ -95,7 +95,8 @@ For example, translating a plain `file` resource will lead to a warning message:
 
 ```
 $ puppet mgmtgraph print --code 'file { "/tmp/mgmt-test": }'
-Warning: File[/tmp/mgmt-test] uses the 'puppet' file bucket, which mgmt cannot do. There will be no backup copies!
+Warning: File[/tmp/mgmt-test] uses the 'puppet' file bucket, which mgmt cannot
+do. There will be no backup copies!
 ```
 
 The reason is that per default, Puppet assumes the following parameter value
diff --git a/examples/lang/duplicate-error.mcl b/examples/lang/duplicate-error.mcl
index b2e7a610..d883f338 100644
--- a/examples/lang/duplicate-error.mcl
+++ b/examples/lang/duplicate-error.mcl
@@ -1,8 +1,8 @@
 # this combination should error
 pkg "cowsay" {
-        state => "uninstalled",
+	state => "uninstalled",
 }
 
 pkg "cowsay" {
-        state => "installed",
+	state => "installed",
 }
diff --git a/examples/lang/duplicate.mcl b/examples/lang/duplicate.mcl
index 62f694de..6a71510b 100644
--- a/examples/lang/duplicate.mcl
+++ b/examples/lang/duplicate.mcl
@@ -1,7 +1,7 @@
 pkg "cowsay" {
-        state => "newest",
+	state => "newest",
 }
 
 pkg "cowsay" {
-        state => "installed",
+	state => "installed",
 }
diff --git a/lang/interpret_test/TestAstFunc2/definition-site-scope.txtar b/lang/interpret_test/TestAstFunc2/definition-site-scope.txtar
index f3d4979b..1359f635 100644
--- a/lang/interpret_test/TestAstFunc2/definition-site-scope.txtar
+++ b/lang/interpret_test/TestAstFunc2/definition-site-scope.txtar
@@ -1,16 +1,16 @@
 -- main.mcl --
 $x = "top-level"
 func f1() {
-  $x + "1"
+	$x + "1"
 }
 $f2 = func() {
-  $x + "2"
+	$x + "2"
 }
 $call_f1 = func($x) {
-  f1() + $x
+	f1() + $x
 }
 $call_f2 = func($x) {
-  $f2() + $x
+	$f2() + $x
 }
 test $call_f1("!") {}
 test $call_f2("?") {}