diff --git a/api/src/main/java/io/github/applecommander/bastokenizer/api/optimizations/ExtractConstantValues.java b/api/src/main/java/io/github/applecommander/bastokenizer/api/optimizations/ExtractConstantValues.java
index fd77545..b9f2056 100644
--- a/api/src/main/java/io/github/applecommander/bastokenizer/api/optimizations/ExtractConstantValues.java
+++ b/api/src/main/java/io/github/applecommander/bastokenizer/api/optimizations/ExtractConstantValues.java
@@ -80,6 +80,8 @@ public class ExtractConstantValues extends BaseVisitor {
 	}
 	private void injectLine0(Program program) {
 		Line line = generateLine0(program);
+		// Bypass if there were no constants
+		if (line.statements.isEmpty()) return;
 		// setup a renumber of lines that interfere if we have any
 		if (program.lines.get(0).lineNumber == 0) {
 			// start with line #0 should become line #1