diff --git a/crates/build/src/error.rs b/crates/build/src/error.rs
index b85e132e..97bd010a 100644
--- a/crates/build/src/error.rs
+++ b/crates/build/src/error.rs
@@ -95,6 +95,9 @@ pub enum BuildError {
     #[error("Failed to extract content from path, err: '{0}'")]
     FailedToExtractContent(io::Error),
 
+    #[error("Failed to parse source '{path}': {error}")]
+    SourceParse { path: PathBuf, error: String },
+
     #[error("Failed to generate file: {0}")]
     GenerationFailed(String),
 
diff --git a/crates/build/src/resolver.rs b/crates/build/src/resolver.rs
index c3665425..b8e787e9 100644
--- a/crates/build/src/resolver.rs
+++ b/crates/build/src/resolver.rs
@@ -44,7 +44,12 @@ impl ArtifactsResolver {
             match parse::Program::parse_from_str(&content) {
                 Ok(program) if Self::rec_main_checker(program.items(), &FunctionName::main()) => paths.push(path),
                 Ok(_) => {}
-                Err(error) => eprintln!("warning: skipping '{}' as it doesn't parse: {error}", path.display()),
+                Err(error) => {
+                    return Err(BuildError::SourceParse {
+                        path,
+                        error: error.to_string(),
+                    });
+                }
             }
         }