diff --git a/src/scanner/LispFilterInputStream.java b/src/scanner/LispFilterInputStream.java
index a752fbe..85cea33 100644
--- a/src/scanner/LispFilterInputStream.java
+++ b/src/scanner/LispFilterInputStream.java
@@ -9,14 +9,14 @@ import java.io.IOException;
  */
 public class LispFilterInputStream extends FilterInputStream {
 
-    private boolean inQuotedString;
+    private boolean isInQuotedString;
     private int previousCharacter;
     private int nextCharacter;
 
     public LispFilterInputStream(InputStream underlyingInputStream) {
         super(underlyingInputStream);
 
-        inQuotedString = false;
+        isInQuotedString = false;
         previousCharacter = 0;
         nextCharacter = 0;
     }
@@ -40,7 +40,7 @@ public class LispFilterInputStream extends FilterInputStream {
 
     private void indicateEncounterWithStringBoundary() {
         if (haveEncounteredStringBoundary())
-            inQuotedString = !inQuotedString;
+            isInQuotedString = !isInQuotedString;
     }
 
     private boolean haveEncounteredStringBoundary() {
@@ -48,7 +48,7 @@ public class LispFilterInputStream extends FilterInputStream {
     }
 
     private boolean haveEnteredComment() {
-        return (nextCharacter == ';') && (!inQuotedString);
+        return (nextCharacter == ';') && (!isInQuotedString);
     }
 
     private void consumeAllBytesInComment() throws IOException {