diff --git a/mlir/include/mlir/Dialect/Linalg/Passes.td b/mlir/include/mlir/Dialect/Linalg/Passes.td
--- a/mlir/include/mlir/Dialect/Linalg/Passes.td
+++ b/mlir/include/mlir/Dialect/Linalg/Passes.td
@@ -111,7 +111,7 @@
   let dependentDialects = ["linalg::LinalgDialect"];
 }
 
-def LinalgDetensorize : Pass<"linalg-detensorize", ""> {
+def LinalgDetensorize : InterfacePass<"linalg-detensorize", "FunctionOpInterface"> {
   let summary = "Detensorize linalg ops";
   let constructor = "mlir::createLinalgDetensorizePass()";
   let dependentDialects = [];
diff --git a/mlir/lib/Dialect/Linalg/Transforms/Detensorize.cpp b/mlir/lib/Dialect/Linalg/Transforms/Detensorize.cpp
--- a/mlir/lib/Dialect/Linalg/Transforms/Detensorize.cpp
+++ b/mlir/lib/Dialect/Linalg/Transforms/Detensorize.cpp
@@ -474,7 +474,7 @@
     DenseSet<Operation *> opsToDetensor;
     DenseMap<Operation *, DenseSet<int>> detensorableBranchOps;
     DenseSet<BlockArgument> blockArgsToDetensor;
-    FunctionOpInterface funcOp = cast<FunctionOpInterface>(getOperation());
+    FunctionOpInterface funcOp = getOperation();
 
     if (aggressiveMode.getValue()) {
       AggressiveDetensoringModel costModel;