diff --git a/linux.cpp b/linux.cpp
index dedab61..c77c1bb 100644
--- a/linux.cpp
+++ b/linux.cpp
@@ -58,11 +58,8 @@
   if (Flags & MAP_MEMTAG)
     MmapProt |= PROT_MTE;
 #endif
-  if (Addr) {
-    // Currently no scenario for a noaccess mapping with a fixed address.
-    DCHECK_EQ(Flags & MAP_NOACCESS, 0);
+  if (Addr)
     MmapFlags |= MAP_FIXED;
-  }
   void *P = mmap(Addr, Size, MmapProt, MmapFlags, -1, 0);
   if (P == MAP_FAILED) {
     if (!(Flags & MAP_ALLOWNOMEM) || errno != ENOMEM)
diff --git a/tests/secondary_test.cpp b/tests/secondary_test.cpp
index 6b8a60d..d3b7c48 100644
--- a/tests/secondary_test.cpp
+++ b/tests/secondary_test.cpp
@@ -6,6 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "memtag.h"
 #include "tests/scudo_unit_test.h"
 
 #include "allocator_config.h"
@@ -20,7 +21,11 @@
 #include <vector>
 
 template <typename Config> static scudo::Options getOptionsForConfig() {
-  return {};
+  if (!Config::MaySupportMemoryTagging || !scudo::archSupportsMemoryTagging())
+    return {};
+  scudo::AtomicOptions AO;
+  AO.set(scudo::OptionBit::UseMemoryTagging);
+  return AO.load();
 }
 
 template <typename Config> static void testSecondaryBasic(void) {