diff --git a/firmware/tunerstudio/rusefi.ini b/firmware/tunerstudio/rusefi.ini
index d4cbdad003..45aaed8a9a 100644
--- a/firmware/tunerstudio/rusefi.ini
+++ b/firmware/tunerstudio/rusefi.ini
@@ -40,6 +40,9 @@ enable2ndByteCanID = false
 ;    settingOption = DEFAULT, "Speed Density" ; DEFAULT will be over looked and this will fall into the #else block of the statement.
 
 
+[MegaTune]
+ ; https://rusefi.com/forum/viewtopic.php?p=36201#p36201
+ 	signature    = "rusEFI v1.2020.3" 
 
 [TunerStudio]
    queryCommand   = "S"
@@ -86,7 +89,7 @@ enable2ndByteCanID = false
 
 ; see PAGE_0_SIZE in C source code    
 ; CONFIG_DEFINITION_START
-; this section was generated automatically by rusEfi tool ConfigDefinition.jar based on gen_config.bat integration\rusefi_config.txt Tue Apr 14 19:06:04 EDT 2020
+; this section was generated automatically by rusEfi tool ConfigDefinition.jar based on gen_config.bat integration\rusefi_config.txt Wed Apr 15 17:02:46 EDT 2020
 
 pageSize            = 20000
 page = 1
diff --git a/firmware/tunerstudio/rusefi.input b/firmware/tunerstudio/rusefi.input
index b56438fa95..ca96477731 100644
--- a/firmware/tunerstudio/rusefi.input
+++ b/firmware/tunerstudio/rusefi.input
@@ -40,6 +40,9 @@ enable2ndByteCanID = false
 ;    settingOption = DEFAULT, "Speed Density" ; DEFAULT will be over looked and this will fall into the #else block of the statement.
 
 
+[MegaTune]
+ ; https://rusefi.com/forum/viewtopic.php?p=36201#p36201
+ 	signature    = @@TS_SIGNATURE@@ 
 
 [TunerStudio]
    queryCommand   = "S"
diff --git a/firmware/tunerstudio/rusefi_frankenso.ini b/firmware/tunerstudio/rusefi_frankenso.ini
index 1d94e59018..c4c2f62aa4 100644
--- a/firmware/tunerstudio/rusefi_frankenso.ini
+++ b/firmware/tunerstudio/rusefi_frankenso.ini
@@ -40,6 +40,9 @@ enable2ndByteCanID = false
 ;    settingOption = DEFAULT, "Speed Density" ; DEFAULT will be over looked and this will fall into the #else block of the statement.
 
 
+[MegaTune]
+ ; https://rusefi.com/forum/viewtopic.php?p=36201#p36201
+ 	signature    = "rusEFI v1.2020.3" 
 
 [TunerStudio]
    queryCommand   = "S"
@@ -86,7 +89,7 @@ enable2ndByteCanID = false
 
 ; see PAGE_0_SIZE in C source code    
 ; CONFIG_DEFINITION_START
-; this section was generated automatically by rusEfi tool ConfigDefinition.jar based on gen_config.bat integration\rusefi_config.txt Tue Apr 14 19:06:11 EDT 2020
+; this section was generated automatically by rusEfi tool ConfigDefinition.jar based on gen_config.bat integration\rusefi_config.txt Wed Apr 15 17:02:53 EDT 2020
 
 pageSize            = 20000
 page = 1
diff --git a/firmware/tunerstudio/rusefi_microrusefi.ini b/firmware/tunerstudio/rusefi_microrusefi.ini
index 1415b0fb6f..1c6ba21706 100644
--- a/firmware/tunerstudio/rusefi_microrusefi.ini
+++ b/firmware/tunerstudio/rusefi_microrusefi.ini
@@ -40,6 +40,9 @@ enable2ndByteCanID = false
 ;    settingOption = DEFAULT, "Speed Density" ; DEFAULT will be over looked and this will fall into the #else block of the statement.
 
 
+[MegaTune]
+ ; https://rusefi.com/forum/viewtopic.php?p=36201#p36201
+ 	signature    = "rusEFI v1.2020.3" 
 
 [TunerStudio]
    queryCommand   = "S"
@@ -86,7 +89,7 @@ enable2ndByteCanID = false
 
 ; see PAGE_0_SIZE in C source code    
 ; CONFIG_DEFINITION_START
-; this section was generated automatically by rusEfi tool ConfigDefinition.jar based on gen_config.bat integration\rusefi_config.txt Tue Apr 14 19:06:08 EDT 2020
+; this section was generated automatically by rusEfi tool ConfigDefinition.jar based on gen_config.bat integration\rusefi_config.txt Wed Apr 15 17:02:50 EDT 2020
 
 pageSize            = 20000
 page = 1
diff --git a/firmware/tunerstudio/rusefi_prometheus.ini b/firmware/tunerstudio/rusefi_prometheus.ini
index a79d341f23..440b96f00f 100644
--- a/firmware/tunerstudio/rusefi_prometheus.ini
+++ b/firmware/tunerstudio/rusefi_prometheus.ini
@@ -40,6 +40,9 @@ enable2ndByteCanID = false
 ;    settingOption = DEFAULT, "Speed Density" ; DEFAULT will be over looked and this will fall into the #else block of the statement.
 
 
+[MegaTune]
+ ; https://rusefi.com/forum/viewtopic.php?p=36201#p36201
+ 	signature    = "rusEFI v1.2020.3" 
 
 [TunerStudio]
    queryCommand   = "S"
@@ -86,7 +89,7 @@ enable2ndByteCanID = false
 
 ; see PAGE_0_SIZE in C source code    
 ; CONFIG_DEFINITION_START
-; this section was generated automatically by rusEfi tool ConfigDefinition.jar based on gen_config.bat integration\rusefi_config.txt Tue Apr 14 19:06:14 EDT 2020
+; this section was generated automatically by rusEfi tool ConfigDefinition.jar based on gen_config.bat integration\rusefi_config.txt Wed Apr 15 17:02:56 EDT 2020
 
 pageSize            = 20000
 page = 1
diff --git a/firmware/tunerstudio/rusefi_proteus.ini b/firmware/tunerstudio/rusefi_proteus.ini
index 384221faa0..dfaa359096 100644
--- a/firmware/tunerstudio/rusefi_proteus.ini
+++ b/firmware/tunerstudio/rusefi_proteus.ini
@@ -40,6 +40,9 @@ enable2ndByteCanID = false
 ;    settingOption = DEFAULT, "Speed Density" ; DEFAULT will be over looked and this will fall into the #else block of the statement.
 
 
+[MegaTune]
+ ; https://rusefi.com/forum/viewtopic.php?p=36201#p36201
+ 	signature    = "rusEFI v1.2020.3" 
 
 [TunerStudio]
    queryCommand   = "S"
@@ -86,7 +89,7 @@ enable2ndByteCanID = false
 
 ; see PAGE_0_SIZE in C source code    
 ; CONFIG_DEFINITION_START
-; this section was generated automatically by rusEfi tool ConfigDefinition.jar based on gen_config.bat integration\rusefi_config.txt Tue Apr 14 19:06:17 EDT 2020
+; this section was generated automatically by rusEfi tool ConfigDefinition.jar based on gen_config.bat integration\rusefi_config.txt Wed Apr 15 17:02:58 EDT 2020
 
 pageSize            = 20000
 page = 1