diff --git a/ext/mysqli/tests/mysqli_debug.phpt b/ext/mysqli/tests/mysqli_debug.phpt
index a95fb209729..da41894b118 100644
--- a/ext/mysqli/tests/mysqli_debug.phpt
+++ b/ext/mysqli/tests/mysqli_debug.phpt
@@ -9,7 +9,7 @@ require_once('skipifconnectfailure.inc');
 if (!function_exists('mysqli_debug'))
  	die("skip: mysqli_debug() not available");
 
-if (!defined('MYSQLI_DEGBUG_TRACE_ENABLED'))
+if (!defined('MYSQLI_DEBUG_TRACE_ENABLED'))
 	die("skip: can't say for sure if mysqli_debug works");
 
 if (defined('MYSQLI_DEBUG_TRACE_ENABLED') && !MYSQLI_DEBUG_TRACE_ENABLED)
@@ -62,4 +62,4 @@ if (defined('MYSQLI_DEBUG_TRACE_ENABLED') && !MYSQLI_DEBUG_TRACE_ENABLED)
 	print "done!";
 ?>
 --EXPECTF--
-done%s
\ No newline at end of file
+done%s
diff --git a/ext/mysqli/tests/mysqli_debug_append.phpt b/ext/mysqli/tests/mysqli_debug_append.phpt
index c9de3c86712..671b3821e29 100644
--- a/ext/mysqli/tests/mysqli_debug_append.phpt
+++ b/ext/mysqli/tests/mysqli_debug_append.phpt
@@ -9,7 +9,7 @@ require_once('skipifconnectfailure.inc');
 if (!function_exists('mysqli_debug'))
  	die("skip: mysqli_debug() not available");
 
-if (!defined('MYSQLI_DEGBUG_TRACE_ENABLED'))
+if (!defined('MYSQLI_DEBUG_TRACE_ENABLED'))
 	die("skip: can't say for sure if mysqli_debug works");
 
 if (defined('MYSQLI_DEBUG_TRACE_ENABLED') && !MYSQLI_DEBUG_TRACE_ENABLED)
diff --git a/ext/mysqli/tests/mysqli_debug_control_string.phpt b/ext/mysqli/tests/mysqli_debug_control_string.phpt
index 13206ed4a35..20556df0499 100644
--- a/ext/mysqli/tests/mysqli_debug_control_string.phpt
+++ b/ext/mysqli/tests/mysqli_debug_control_string.phpt
@@ -9,7 +9,7 @@ require_once('skipifconnectfailure.inc');
 if (!function_exists('mysqli_debug'))
  	die("skip: mysqli_debug() not available");
 
-if (!defined('MYSQLI_DEGBUG_TRACE_ENABLED'))
+if (!defined('MYSQLI_DEBUG_TRACE_ENABLED'))
 	die("skip: can't say for sure if mysqli_debug works");
 
 if (defined('MYSQLI_DEBUG_TRACE_ENABLED') && !MYSQLI_DEBUG_TRACE_ENABLED)
@@ -71,4 +71,4 @@ if (defined('MYSQLI_DEBUG_TRACE_ENABLED') && !MYSQLI_DEBUG_TRACE_ENABLED)
 ?>
 --EXPECTF--
 [023][control string '%s'] Trace file has not been written.
-done%s
\ No newline at end of file
+done%s
diff --git a/ext/mysqli/tests/mysqli_debug_ini.phpt b/ext/mysqli/tests/mysqli_debug_ini.phpt
index 7a94b40226e..d02a3c0921a 100644
--- a/ext/mysqli/tests/mysqli_debug_ini.phpt
+++ b/ext/mysqli/tests/mysqli_debug_ini.phpt
@@ -8,7 +8,7 @@ require_once('skipifemb.inc');
 if (!function_exists('mysqli_debug'))
  	die("skip mysqli_debug() not available");
 
-if (!defined('MYSQLI_DEGBUG_TRACE_ENABLED'))
+if (!defined('MYSQLI_DEBUG_TRACE_ENABLED'))
 	die("skip: can't say for sure if mysqli_debug works");
 
 if (defined('MYSQLI_DEBUG_TRACE_ENABLED') && !MYSQLI_DEBUG_TRACE_ENABLED)
@@ -51,4 +51,4 @@ string(32) "t:O,/tmp/mysqli_debug_phpt.trace"
 done!
 --UEXPECTF--
 unicode(32) "t:O,/tmp/mysqli_debug_phpt.trace"
-done!
\ No newline at end of file
+done!
diff --git a/ext/mysqli/tests/mysqli_debug_mysqlnd_control_string.phpt b/ext/mysqli/tests/mysqli_debug_mysqlnd_control_string.phpt
index 8a4d3a184ea..db9ceb38239 100644
--- a/ext/mysqli/tests/mysqli_debug_mysqlnd_control_string.phpt
+++ b/ext/mysqli/tests/mysqli_debug_mysqlnd_control_string.phpt
@@ -9,7 +9,7 @@ require_once('skipifconnectfailure.inc');
 if (!function_exists('mysqli_debug'))
  	die("skip: mysqli_debug() not available");
 
-if (!defined('MYSQLI_DEGBUG_TRACE_ENABLED'))
+if (!defined('MYSQLI_DEBUG_TRACE_ENABLED'))
 	die("skip: can't say for sure if mysqli_debug works");
 
 if (defined('MYSQLI_DEBUG_TRACE_ENABLED') && !MYSQLI_DEBUG_TRACE_ENABLED)
diff --git a/ext/mysqli/tests/mysqli_debug_mysqlnd_only.phpt b/ext/mysqli/tests/mysqli_debug_mysqlnd_only.phpt
index 34ca27be48f..fc9f7a80225 100644
--- a/ext/mysqli/tests/mysqli_debug_mysqlnd_only.phpt
+++ b/ext/mysqli/tests/mysqli_debug_mysqlnd_only.phpt
@@ -10,7 +10,7 @@ require_once('connect.inc');
 if (!function_exists('mysqli_debug'))
  	die("skip mysqli_debug() not available");
 
-if (!defined('MYSQLI_DEGBUG_TRACE_ENABLED'))
+if (!defined('MYSQLI_DEBUG_TRACE_ENABLED'))
 	die("skip: can't say for sure if mysqli_debug works");
 
 if (defined('MYSQLI_DEBUG_TRACE_ENABLED') && !MYSQLI_DEBUG_TRACE_ENABLED)
@@ -121,4 +121,4 @@ if (!$IS_MYSQLND)
 	print "done!";
 ?>
 --EXPECTF--
-done!
\ No newline at end of file
+done!