diff --git a/kernel/src/sys/allocate_memory.cpp b/kernel/src/sys/allocate_memory.cpp
index 84083cc7..5203d551 100644
--- a/kernel/src/sys/allocate_memory.cpp
+++ b/kernel/src/sys/allocate_memory.cpp
@@ -33,6 +33,7 @@ Result<u64> sys_allocate_memory(Registers*, SyscallArgs args)
     int mmu_flags = MMU::User | MMU::NoExecute;
     if (flags & PROT_WRITE) mmu_flags |= MMU::ReadWrite;
     if (flags & PROT_EXEC) mmu_flags &= ~MMU::NoExecute;
+    if (flags == PROT_NONE) mmu_flags = MMU::NoExecute;
 
     kdbgln("allocate_memory: allocating memory at %#lx", address);