diff --git a/runtime/executor/method.cpp b/runtime/executor/method.cpp
index 0ddd34f7cd3..606b2460155 100644
--- a/runtime/executor/method.cpp
+++ b/runtime/executor/method.cpp
@@ -1521,8 +1521,17 @@ Error Method::execute_instruction() {
       // We know that instr_args_as_FreeCall is non-null because it was checked
       // at init time.
       auto free_call = instruction->instr_args_as_FreeCall();
-      auto t = mutable_value(free_call->value_index()).toTensor();
-      internal::reset_data_ptr(t);
+      auto& val = mutable_value(free_call->value_index());
+      if (val.isTensor()) {
+        auto& t = val.toTensor();
+        internal::reset_data_ptr(t);
+      } else {
+        ET_LOG(
+            Error,
+            "FreeCall target at index %u is not a Tensor",
+            static_cast<unsigned int>(free_call->value_index()));
+        err = Error::InvalidProgram;
+      }
     } break;
     default:
       ET_LOG(