diff --git a/api/virtio/virtio.hpp b/api/virtio/virtio.hpp
index e913c51b4..7bf257e83 100644
--- a/api/virtio/virtio.hpp
+++ b/api/virtio/virtio.hpp
@@ -34,10 +34,13 @@
 
 #include "../hw/pci_device.hpp"
 #include <net/inet_common.hpp>
+#include <limits.h>
 #include <stdint.h>
 #include <vector>
 
-#define PAGE_SIZE 4096
+#if ! defined(PAGE_SIZE)
+#error "PAGE_SIZE not defined. Expected it to be defined by musl's limits.h"
+#endif
 
 #define VIRTIO_F_NOTIFY_ON_EMPTY 24
 #define VIRTIO_F_ANY_LAYOUT 27
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index d212b22a2..572f3e38d 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -46,7 +46,7 @@ if (DEBUG_INFO)
   set(NO_DEBUG "")
 endif()
 
-set(CMAKE_CXX_FLAGS "-g -O0 -std=c++20 -Wall -Wextra -Wno-frame-address -Wno-unused-function -Wno-int-to-pointer-cast -D__id_t_defined -DUNITTESTS -DURI_THROW_ON_ERROR ${NO_INFO} ${NO_DEBUG} -DGSL_THROW_ON_CONTRACT_VIOLATION -Dlest_FEATURE_AUTO_REGISTER=1 -DHAVE_LEST_MAIN")
+set(CMAKE_CXX_FLAGS "-g -O0 -std=c++20 -Wall -Wextra -Wno-frame-address -Wno-unused-function -Wno-int-to-pointer-cast -D__id_t_defined -DUNITTESTS -DURI_THROW_ON_ERROR ${NO_INFO} ${NO_DEBUG} -DGSL_THROW_ON_CONTRACT_VIOLATION -Dlest_FEATURE_AUTO_REGISTER=1 -DHAVE_LEST_MAIN -DPAGE_SIZE=4096")
 
 set(TEST ${CMAKE_CURRENT_SOURCE_DIR})