diff --git a/src/main/c/Tim/hangman.c b/src/main/c/Tim/hangman.c
index 040a085..228d02a 100644
--- a/src/main/c/Tim/hangman.c
+++ b/src/main/c/Tim/hangman.c
@@ -194,33 +194,33 @@ bool letterGuessed(char selectedLetter, char guessWord[], int length)
 
 }
 
-void changeLetter(char x, char y[], int length, char ptr[])
+void changeLetter(char selectedLetter, char guessWord[], int length, char ptrDisplayWord[])
 {
     for(int i = 0; i<length; i++) {
-        if(isupper(x)!=0)
+        if(isupper(selectedLetter) != 0)
         {
-            if (x == y[i]-32 || x == y[i] )
+            if (selectedLetter == guessWord[i] - 32 || selectedLetter == guessWord[i] )
             {
-                if(i ==0 && isupper(y[0])!=0)
+                if(i ==0 && isupper(guessWord[0]) != 0)
                 {
-                    ptr[i] = x;
+                    ptrDisplayWord[i] = selectedLetter;
                 }
                 else
                 {
-                    ptr[i] = x+32;
+                    ptrDisplayWord[i] = selectedLetter + 32;
                 }
             }
         }
         else
         {
-            if (x == y[i]||x == y[i]+32)
+            if (selectedLetter == guessWord[i] || selectedLetter == guessWord[i] + 32)
             {
-                if(i == 0 && isupper(y[0])!=0)
+                if(i == 0 && isupper(guessWord[0]) != 0)
                 {
-                    ptr[i] = x-32;
+                    ptrDisplayWord[i] = selectedLetter - 32;
                 }
                 else {
-                    ptr[i] = x;
+                    ptrDisplayWord[i] = selectedLetter;
                 }
             }
         }