diff --git a/src/dscanner/analysis/run.d b/src/dscanner/analysis/run.d
index 4aa0320..a8f3a08 100644
--- a/src/dscanner/analysis/run.d
+++ b/src/dscanner/analysis/run.d
@@ -119,8 +119,10 @@ private string formatBase(string format, Message.Diagnostic diagnostic, scope co
 	s = s.replace("{filepath}", diagnostic.fileName);
 	s = s.replace("{line}", to!string(diagnostic.startLine));
 	s = s.replace("{column}", to!string(diagnostic.startColumn));
+	s = s.replace("{startIndex}", to!string(diagnostic.startIndex));
 	s = s.replace("{endLine}", to!string(diagnostic.endLine));
 	s = s.replace("{endColumn}", to!string(diagnostic.endColumn));
+	s = s.replace("{endIndex}", to!string(diagnostic.endIndex));
 	s = s.replace("{message}", diagnostic.message);
 	s = s.replace("{context}", diagnostic.formatContext(cast(const(char)[]) code, color));
 	return s;
diff --git a/src/dscanner/main.d b/src/dscanner/main.d
index e87950b..b571269 100644
--- a/src/dscanner/main.d
+++ b/src/dscanner/main.d
@@ -461,6 +461,8 @@ Options:
         - {endLine}: end line number, 1-based, inclusive
         - {column}: start column on start line, 1-based, in bytes
         - {endColumn}: end column on end line, 1-based, in bytes, exclusive
+        - {startIndex}: start file byte offset, 0-based
+        - {endIndex}: end file byte offset, 0-based
         - {type}: "error" or "warn", uppercase variants: {Type}, {TYPE},
         - {type2}: "error" or "warning", uppercase variants: {Type2}, {TYPE2}
         - {message}: human readable message such as "Variable c is never used."