diff --git a/src/hulk/acpi.d b/src/hulk/acpi.d
index eb76c10..179417b 100644
--- a/src/hulk/acpi.d
+++ b/src/hulk/acpi.d
@@ -116,7 +116,7 @@ struct Acpi
     public static void initialize(ulong acpi_xsdt_phys)
     {
         /* Map the XSDT header. */
-        Hurl.identity_map_range(acpi_xsdt_phys, PAGE_SIZE, 0u);
+        map_table(acpi_xsdt_phys, PAGE_SIZE);
         const(XSDT) * xsdt = cast(const(XSDT) *)acpi_xsdt_phys;
         if (xsdt.header.signature != XSDT_SIGNATURE)
         {
@@ -126,18 +126,18 @@ struct Acpi
         /* Map the entire XSDT. */
         if (xsdt.header.length > PAGE_SIZE)
         {
-            Hurl.identity_map_range(acpi_xsdt_phys, xsdt.header.length, 0u);
+            map_table(acpi_xsdt_phys, xsdt.header.length);
         }
         size_t n_entries = (xsdt.header.length - xsdt.header.sizeof) / xsdt.tables[0].sizeof;
         for (size_t i = 0u; i < n_entries; i++)
         {
             ulong address = xsdt.tables[i];
-            Hurl.identity_map_range(address, PAGE_SIZE, 0u);
+            map_table(address, PAGE_SIZE);
             const(Header) * header = cast(const(Header) *)address;
             uint length = header.length;
             if (length > PAGE_SIZE)
             {
-                Hurl.identity_map_range(address, length, 0u);
+                map_table(address, length);
             }
             uint signature = header.signature;
             Klog.writefln("Found ACPI table %08x (%c%c%c%c)",
@@ -156,4 +156,9 @@ struct Acpi
             }
         }
     }
+
+    private static void map_table(ulong address, ulong length)
+    {
+        Hurl.identity_map_range(address, length, PT_DISABLE_CACHE | PT_NO_EXECUTE);
+    }
 }