diff --git a/modules/lang-painless/src/main/java/org/elasticsearch/painless/antlr/Walker.java b/modules/lang-painless/src/main/java/org/elasticsearch/painless/antlr/Walker.java
index e2742ffb9936d..6c8d3a62e065b 100644
--- a/modules/lang-painless/src/main/java/org/elasticsearch/painless/antlr/Walker.java
+++ b/modules/lang-painless/src/main/java/org/elasticsearch/painless/antlr/Walker.java
@@ -29,7 +29,6 @@
 import org.antlr.v4.runtime.atn.PredictionMode;
 import org.antlr.v4.runtime.tree.TerminalNode;
 import org.elasticsearch.painless.CompilerSettings;
-import org.elasticsearch.painless.lookup.PainlessLookup;
 import org.elasticsearch.painless.Globals;
 import org.elasticsearch.painless.Location;
 import org.elasticsearch.painless.Operation;
@@ -107,6 +106,7 @@
 import org.elasticsearch.painless.antlr.PainlessParser.TryContext;
 import org.elasticsearch.painless.antlr.PainlessParser.VariableContext;
 import org.elasticsearch.painless.antlr.PainlessParser.WhileContext;
+import org.elasticsearch.painless.lookup.PainlessLookup;
 import org.elasticsearch.painless.node.AExpression;
 import org.elasticsearch.painless.node.ANode;
 import org.elasticsearch.painless.node.AStatement;
@@ -184,7 +184,6 @@ public static SSource buildPainlessTree(ScriptClassInfo mainMethod, MainMethodRe
     private final CompilerSettings settings;
     private final Printer debugStream;
     private final String sourceName;
-    private final String sourceText;
     private final PainlessLookup painlessLookup;
 
     private final Deque<Reserved> reserved = new ArrayDeque<>();
@@ -198,7 +197,6 @@ private Walker(ScriptClassInfo scriptClassInfo, MainMethodReserved reserved, Str
         this.debugStream = debugStream;
         this.settings = settings;
         this.sourceName = Location.computeSourceName(sourceName);
-        this.sourceText = sourceText;
         this.globals = new Globals(new BitSet(sourceText.length()));
         this.painlessLookup = painlessLookup;
         this.source = (SSource)visit(buildAntlrTree(sourceText));
@@ -267,7 +265,7 @@ public ANode visitSource(SourceContext ctx) {
             statements.add((AStatement)visit(ctx.dstatement()));
         }
 
-        return new SSource(scriptClassInfo, settings, sourceName, sourceText, debugStream, (MainMethodReserved)reserved.pop(),
+        return new SSource(scriptClassInfo, settings, sourceName, debugStream, (MainMethodReserved)reserved.pop(),
                            location(ctx), functions, globals, statements);
     }
 
diff --git a/modules/lang-painless/src/main/java/org/elasticsearch/painless/node/SSource.java b/modules/lang-painless/src/main/java/org/elasticsearch/painless/node/SSource.java
index 4781457a57dfa..cd473e2c84ec7 100644
--- a/modules/lang-painless/src/main/java/org/elasticsearch/painless/node/SSource.java
+++ b/modules/lang-painless/src/main/java/org/elasticsearch/painless/node/SSource.java
@@ -21,9 +21,6 @@
 
 import org.elasticsearch.painless.CompilerSettings;
 import org.elasticsearch.painless.Constant;
-import org.elasticsearch.painless.lookup.PainlessLookup;
-import org.elasticsearch.painless.lookup.PainlessMethod;
-import org.elasticsearch.painless.lookup.PainlessMethodKey;
 import org.elasticsearch.painless.Globals;
 import org.elasticsearch.painless.Locals;
 import org.elasticsearch.painless.Locals.Variable;
@@ -32,6 +29,9 @@
 import org.elasticsearch.painless.ScriptClassInfo;
 import org.elasticsearch.painless.SimpleChecksAdapter;
 import org.elasticsearch.painless.WriterConstants;
+import org.elasticsearch.painless.lookup.PainlessLookup;
+import org.elasticsearch.painless.lookup.PainlessMethod;
+import org.elasticsearch.painless.lookup.PainlessMethodKey;
 import org.elasticsearch.painless.node.SFunction.FunctionReserved;
 import org.objectweb.asm.ClassVisitor;
 import org.objectweb.asm.ClassWriter;
@@ -130,7 +130,6 @@ public int getMaxLoopCounter() {
     private final ScriptClassInfo scriptClassInfo;
     private final CompilerSettings settings;
     private final String name;
-    private final String source;
     private final Printer debugStream;
     private final MainMethodReserved reserved;
     private final List<SFunction> functions;
@@ -141,14 +140,12 @@ public int getMaxLoopCounter() {
     private final List<org.objectweb.asm.commons.Method> getMethods;
     private byte[] bytes;
 
-    public SSource(ScriptClassInfo scriptClassInfo, CompilerSettings settings, String name, String source, Printer debugStream,
-                   MainMethodReserved reserved, Location location,
-                   List<SFunction> functions, Globals globals, List<AStatement> statements) {
+    public SSource(ScriptClassInfo scriptClassInfo, CompilerSettings settings, String name, Printer debugStream,
+            MainMethodReserved reserved, Location location, List<SFunction> functions, Globals globals, List<AStatement> statements) {
         super(location);
         this.scriptClassInfo = Objects.requireNonNull(scriptClassInfo);
         this.settings = Objects.requireNonNull(settings);
         this.name = Objects.requireNonNull(name);
-        this.source = Objects.requireNonNull(source);
         this.debugStream = debugStream;
         this.reserved = Objects.requireNonNull(reserved);
         // process any synthetic functions generated by walker (because right now, thats still easy)