diff --git a/src/frontend/compiler.nim b/src/frontend/compiler.nim
index ce1565b..88d9a7d 100644
--- a/src/frontend/compiler.nim
+++ b/src/frontend/compiler.nim
@@ -172,7 +172,7 @@ proc peek(self: Compiler, distance: int = 0): ASTNode =
     ## AST node in the tree is returned. A negative
     ## distance may be used to retrieve previously
     ## consumed AST nodes
-    if self.ast.high() == -1 or self.current + distance > self.ast.high() or
+    if self.ast.high() <= -1 or self.current + distance > self.ast.high() or
             self.current + distance < 0:
         result = self.ast[^1]
     else: