diff --git a/src/dreammaker/preprocessor.rs b/src/dreammaker/preprocessor.rs
index d3a54852..8a547087 100644
--- a/src/dreammaker/preprocessor.rs
+++ b/src/dreammaker/preprocessor.rs
@@ -419,7 +419,7 @@ impl Preprocessor {
                         expect_token!(() = Token::Punct(Punctuation::Newline));
                         self.defines.remove(&define_name); // TODO: warn if none
                     }
-                    "warn" | "error" => {
+                    "warning" | "warn" | "error" => {
                         // TODO: report warnings as warnings rather than errors
                         expect_token!((text) = Token::String(text));
                         return Err(DMError::new(self.last_input_loc, format!("#{} {}", ident, text)));