yterm

diff --git a/source/interpreter/vt100.c b/source/interpreter/vt100.c
index 44ba4c3df78aba47a9f152eafa06c44fd44f64de..8059e3f33c37dd4245b65d8ed9c55f81baca604e 100644
--- a/source/interpreter/vt100.c
+++ b/source/interpreter/vt100.c
@@ -51,7 +51,8 @@ 	}
 
 	if (Input_KeyPressed(KEY_LCTRL) || (Input_KeyPressed(KEY_RCTRL))) {
 		if ((key >= KEY_A) || (key <= KEY_Z)) {
-			char ch = ((char) (key + ('A' - 1))) & 0x1F;
+			// char ch = ((char) (key + ('A' - 1))) & 0x1F;
+			char ch = ((char) ((key - KEY_A) + 'A')) & 0x1F;
 
 			static char ret[2];
 			ret[0] = ch;