diff --git a/src/frontend/compiler.nim b/src/frontend/compiler.nim
index 4c9d35e..91252a5 100644
--- a/src/frontend/compiler.nim
+++ b/src/frontend/compiler.nim
@@ -1828,6 +1828,7 @@ proc assignment(self: Compiler, node: ASTNode) =
                 self.error(&"cannot assign to '{name.token.lexeme}' (value is a constant)", name)
             elif r.isLet:
                 self.error(&"cannot reassign '{name.token.lexeme}' (value is immutable)", name)
+            self.check(node.value, r.valueType)
             self.expression(node.value)
             if not r.isClosedOver:
                 self.emitByte(StoreVar, node.token.line)