diff --git a/conf/settings/test_settings.xml b/conf/settings/test_settings.xml
index 07afcf925d..f24d3b3a6b 100644
--- a/conf/settings/test_settings.xml
+++ b/conf/settings/test_settings.xml
@@ -4,10 +4,10 @@
   <dl_settings>
     <dl_settings NAME="Group1">
 
-      <dl_setting var="setting_a" min="0" step="1" max="42" shortname ="a" module="test/subsystems/test_settings"/>
-      <dl_setting var="setting_b" min="0" step="1" max="42" shortname ="b" persistent="true"/>
-      <dl_setting var="setting_c" min="0" step="1" max="42" shortname ="c" persistent="true"/>
-      <dl_setting var="setting_d" min="0" step="1" max="42" shortname ="d" persistent="true" />
+      <dl_setting var="setting_f" min="0" step="0.1" max="42" shortname ="f" persistent="true" type="float" module="test/subsystems/test_settings"/>
+      <dl_setting var="setting_u8" min="0" step="1" max="42" shortname ="u8" persistent="true" type="uint8"/>
+      <dl_setting var="setting_d" min="-42" step="0.1" max="42" shortname ="d" persistent="true" type="double"/>
+      <dl_setting var="setting_i32" min="0" step="1" max="4242" shortname ="i32" persistent="true" type="int32"/>
       <dl_setting var="settings_store_flag" min="0" step="1" max="1" shortname="store" handler="StoreSettings" module="subsystems/settings"/>
 
     </dl_settings>
diff --git a/sw/airborne/test/subsystems/test_settings.c b/sw/airborne/test/subsystems/test_settings.c
index 63f2973a1f..5fae641f83 100644
--- a/sw/airborne/test/subsystems/test_settings.c
+++ b/sw/airborne/test/subsystems/test_settings.c
@@ -38,10 +38,10 @@ static inline void main_periodic(void);
 static inline void main_event(void);
 
 
-float setting_a;
-float setting_b;
-float setting_c;
-float setting_d;
+float setting_f;
+uint8_t setting_u8;
+double setting_d;
+int32_t setting_i32;
 
 int main(void)
 {
@@ -58,7 +58,6 @@ int main(void)
 
 static inline void main_init(void)
 {
-
   mcu_init();
   sys_time_register_timer((1. / PERIODIC_FREQUENCY), NULL);
   settings_init();
@@ -69,7 +68,6 @@ static inline void main_init(void)
 
 static inline void main_periodic(void)
 {
-
   RunOnceEvery(100, {
     DOWNLINK_SEND_ALIVE(DefaultChannel, DefaultDevice, 16, MD5SUM);
     PeriodicSendDlValue(&(DefaultChannel).trans_tx, &(DefaultDevice).device);
@@ -81,7 +79,6 @@ static inline void main_event(void)
 {
 
   DatalinkEvent();
-
 }
 
 void dl_parse_msg(void)
diff --git a/sw/airborne/test/subsystems/test_settings.h b/sw/airborne/test/subsystems/test_settings.h
index 045893f992..dbf770dba7 100644
--- a/sw/airborne/test/subsystems/test_settings.h
+++ b/sw/airborne/test/subsystems/test_settings.h
@@ -3,9 +3,9 @@
 
 #include "std.h"
 
-extern float setting_a;
-extern float setting_b;
-extern float setting_c;
-extern float setting_d;
+extern float setting_f;
+extern uint8_t setting_u8;
+extern double setting_d;
+extern int32_t setting_i32;
 
 #endif