diff --git a/testing/allocator_shim_config.cpp b/testing/allocator_shim_config.cpp
index 416d82f..eb46fad 100644
--- a/testing/allocator_shim_config.cpp
+++ b/testing/allocator_shim_config.cpp
@@ -4,14 +4,19 @@
 
 #include "testing/allocator_shim_config.h"
 
+#include "partition_alloc/dangling_raw_ptr_checks.h"
 #include "partition_alloc/partition_alloc_buildflags.h"
 #include "partition_alloc/shim/allocator_shim.h"
+#include "third_party/base/check.h"
 
 namespace pdfium {
 
 void ConfigurePartitionAllocShimPartitionForTest() {
 #if BUILDFLAG(USE_PARTITION_ALLOC_AS_MALLOC)
 #if BUILDFLAG(ENABLE_BACKUP_REF_PTR_SUPPORT)
+#if BUILDFLAG(ENABLE_DANGLING_RAW_PTR_CHECKS)
+  partition_alloc::SetDanglingRawPtrDetectedFn([](uintptr_t) { CHECK(0); });
+#endif  // BUILDFLAG(ENABLE_DANGLING_RAW_PTR_CHECKS)
   allocator_shim::ConfigurePartitions(
       allocator_shim::EnableBrp(true),
       allocator_shim::EnableMemoryTagging(false),