diff --git a/test/test_analyze_structure.lua b/test/test_analyze_structure.lua
index 2297d53..361e107 100644
--- a/test/test_analyze_structure.lua
+++ b/test/test_analyze_structure.lua
@@ -1,6 +1,6 @@
 
 local SUITE = require 'TestSuite' 'analyze_structure'
-SUITE:setEnviroment {
+SUITE:setEnvironment {
     analyze_structure = require 'analyze_structure',
     TABLE_TYPE        = require 'common' . TABLE_TYPE
 }
diff --git a/test/test_cdata.lua b/test/test_cdata.lua
index 0b91f3f..1165db5 100644
--- a/test/test_cdata.lua
+++ b/test/test_cdata.lua
@@ -4,7 +4,7 @@ local SUITE = require 'TestSuite' 'cdata'
 -- Only relevant in LUAJIT.
 if type(jit) ~= 'table' or true then  return SUITE  end
 
-SUITE:setEnviroment{
+SUITE:setEnvironment{
     format  = require 'pretty',
     analyze_byte_string = require 'analyze_byte_string',
 }
diff --git a/test/test_function.lua b/test/test_function.lua
index 0dc9aed..a6aebf4 100644
--- a/test/test_function.lua
+++ b/test/test_function.lua
@@ -1,6 +1,6 @@
 
 local SUITE = require 'TestSuite' 'function'
-SUITE:setEnviroment{
+SUITE:setEnvironment{
     format  = require('pretty')
 }
 
diff --git a/test/test_number.lua b/test/test_number.lua
index d6e8267..503f1f8 100644
--- a/test/test_number.lua
+++ b/test/test_number.lua
@@ -1,6 +1,6 @@
 
 local SUITE = require 'TestSuite' 'number'
-SUITE:setEnviroment{
+SUITE:setEnvironment{
     format  = require('pretty')
 }
 
diff --git a/test/test_pretty.lua b/test/test_pretty.lua
index 521c5a3..4de8ad5 100644
--- a/test/test_pretty.lua
+++ b/test/test_pretty.lua
@@ -1,6 +1,6 @@
 
 local SUITE = require 'TestSuite' 'pretty'
-SUITE:setEnviroment{
+SUITE:setEnvironment{
     format  = require('pretty')
 }
 
diff --git a/test/test_pstring.lua b/test/test_pstring.lua
index 9c5bda6..e7c6bb2 100644
--- a/test/test_pstring.lua
+++ b/test/test_pstring.lua
@@ -1,6 +1,6 @@
 
 local SUITE = require 'TestSuite' 'string'
-SUITE:setEnviroment{
+SUITE:setEnvironment{
     format  = require('pretty')
 }
 
diff --git a/test/test_resilience.lua b/test/test_resilience.lua
index d4c0e10..378b20e 100644
--- a/test/test_resilience.lua
+++ b/test/test_resilience.lua
@@ -23,7 +23,7 @@ end
 --------------------------------------------------------------------------------
 
 local SUITE = require 'TestSuite' 'resilience'
-SUITE:setEnviroment{
+SUITE:setEnvironment{
     pretty  = require('pretty'),
     setfenv = setfenv,
 }
diff --git a/test/test_sorting.lua b/test/test_sorting.lua
index b39346a..1b3a0d2 100644
--- a/test/test_sorting.lua
+++ b/test/test_sorting.lua
@@ -1,6 +1,6 @@
 
 local SUITE = require 'TestSuite' 'sorting'
-SUITE:setEnviroment{
+SUITE:setEnvironment{
     pretty  = require('pretty')
 }