diff --git a/Exit-Code-Mappings.md b/Exit-Code-Mappings.md
index 453ff07..593f8e8 100644
--- a/Exit-Code-Mappings.md
+++ b/Exit-Code-Mappings.md
@@ -18,6 +18,7 @@ Runner: https://github.com/ReCodEx/utils/blob/master/runners/java/javarun.java
 | 100 | OutOfMemoryError | Out of memory exception |
 | 101 | SecurityException | Security exception |
 | 102 | --- | Main class not found exception |
+| 103 | --- | Multiple main classes found |
 | 104 | IllegalAccessException | Illegal access exception |
 | 105 | IllegalArgumentException | Illegal argument exception |
 | 106 | StackOverflowError | Stack overflow exception |