diff --git a/src/ds/defines.h b/src/ds/defines.h
index a240739..ca2289e 100644
--- a/src/ds/defines.h
+++ b/src/ds/defines.h
@@ -28,6 +28,12 @@
 #  define SNMALLOC_CONSTINIT_STATIC constexpr
 #endif
 
+#if defined(__cpp_consteval)
+#  define SNMALLOC_CONSTEVAL consteval
+#else
+#  define SNMALLOC_CONSTEVAL constexpr
+#endif
+
 #if !defined(__clang__) && defined(__GNUC__)
 #  define GCC_NOT_CLANG
 #endif
diff --git a/src/ds/ptrwrap.h b/src/ds/ptrwrap.h
index ee34cb6..8cf1f81 100644
--- a/src/ds/ptrwrap.h
+++ b/src/ds/ptrwrap.h
@@ -59,7 +59,7 @@ namespace snmalloc
    * annotation.
    */
   template<capptr_bounds B>
-  constexpr capptr_bounds capptr_export_type()
+  SNMALLOC_CONSTEVAL capptr_bounds capptr_export_type()
   {
     static_assert(
       (B == CBChunk) || (B == CBAlloc), "capptr_export_type of bad type");
@@ -74,7 +74,7 @@ namespace snmalloc
   }
 
   template<capptr_bounds BI, capptr_bounds BO>
-  constexpr bool capptr_is_bounds_refinement()
+  SNMALLOC_CONSTEVAL bool capptr_is_bounds_refinement()
   {
     switch (BI)
     {