diff --git a/lib/HAL/TargetSystem.cpp b/lib/HAL/TargetSystem.cpp
index 6948d78db..8993e5187 100644
--- a/lib/HAL/TargetSystem.cpp
+++ b/lib/HAL/TargetSystem.cpp
@@ -80,6 +80,11 @@ llvm::Expected<mlir::ModuleOp>
 TargetInstrument::getModule(mlir::ModuleOp parentModuleOp) {
   for (auto childModuleOp :
        parentModuleOp.getBody()->getOps<mlir::ModuleOp>()) {
+    // Check for a QUIR module. If no quir.nodeType, skip this module.
+    // This likely indicates it is the `main` module
+    if (!childModuleOp->hasAttrOfType<mlir::StringAttr>("quir.nodeType"))
+      continue;
+
     auto moduleNodeType =
         childModuleOp->getAttrOfType<mlir::StringAttr>("quir.nodeType");
     auto moduleNodeId = mlir::quir::getNodeId(childModuleOp);