diff --git a/src/compiler/compiler.ts b/src/compiler/compiler.ts
index 4f8b15b..c22e117 100644
--- a/src/compiler/compiler.ts
+++ b/src/compiler/compiler.ts
@@ -475,8 +475,8 @@ export class Compiler {
         // = can be a valid word, and also valid in words, so for now we cheat
         // and check for arrays that look like `[ = ]` to interpret them as
         // empty dicts
-        if (children.length === 1 && children[0].name === 'Word') {
-          const child = children[0]
+        if (children.length === 1 && children[0]!.name === 'Word') {
+          const child = children[0]!
           if (input.slice(child.from, child.to) === '=') {
             return [['MAKE_DICT', 0]]
           }
@@ -493,13 +493,13 @@ export class Compiler {
 
         children.forEach((node) => {
           const keyNode = node.firstChild
-          const valueNode = node.firstChild.nextSibling
+          const valueNode = node.firstChild!.nextSibling
 
           // name= -> name
-          const key = input.slice(keyNode.from, keyNode.to).slice(0, -1)
+          const key = input.slice(keyNode!.from, keyNode!.to).slice(0, -1)
           instructions.push(['PUSH', key])
 
-          instructions.push(...this.#compileNode(valueNode, input))
+          instructions.push(...this.#compileNode(valueNode!, input))
         })
 
         instructions.push(['MAKE_DICT', children.length])