diff --git a/distr/iss/InnoSetup.iss b/distr/iss/InnoSetup.iss
index a050b77..d49b342 100644
--- a/distr/iss/InnoSetup.iss
+++ b/distr/iss/InnoSetup.iss
@@ -1,8 +1,14 @@
 ; Script generated by the Inno Setup Script Wizard.
 ; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!
+#ifexist "defines.iss"
+#include "defines.iss"
+#endif
+
+#ifndef MyAppVersion
+#define MyAppVersion "1.0.0"
+#endif
              
 #define MyAppName "Screen Translator"
-#define MyAppVersion "2.0.1"
 #define MyAppPublisher "Gres"
 #define MyAppURL "http://gres.biz/screen-translator/"
 #define MyAppExeName "ScreenTranslator.exe"    
diff --git a/distr/iss/InnoSetupWithTessdata.iss b/distr/iss/InnoSetupWithTessdata.iss
index 8ade35e..7dec419 100644
--- a/distr/iss/InnoSetupWithTessdata.iss
+++ b/distr/iss/InnoSetupWithTessdata.iss
@@ -1,8 +1,14 @@
 ; Script generated by the Inno Setup Script Wizard.
 ; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!
-             
+#ifexist "defines.iss"
+#include "defines.iss"
+#endif
+
+#ifndef MyAppVersion
+#define MyAppVersion "1.0.0"
+#endif 
+
 #define MyAppName "Screen Translator"
-#define MyAppVersion "2.0.1"
 #define MyAppPublisher "Gres"
 #define MyAppURL "http://gres.biz/screen-translator/"
 #define MyAppExeName "ScreenTranslator.exe"