diff --git a/src/gba/debugger-expr-yacc.cpp b/src/gba/debugger-expr-yacc.cpp
index c3a1840d..35bbf145 100644
--- a/src/gba/debugger-expr-yacc.cpp
+++ b/src/gba/debugger-expr-yacc.cpp
@@ -126,7 +126,7 @@
   
 #include "../System.h"
 #include "GBA.h"
-#include "../Common/Port.h"
+#include "../common/Port.h"
 
 #include <string>
 #include <map>