diff --git a/src/hidpp10.c b/src/hidpp10.c
index 0dbad2b9..ce4ccd3c 100644
--- a/src/hidpp10.c
+++ b/src/hidpp10.c
@@ -1023,7 +1023,7 @@ hidpp10_read_memory(struct hidpp10_device *dev, uint8_t page, uint16_t offset,
 		return -EINVAL;
 	}
 
-	if (page > 31)
+	if (page > HIDPP10_MAX_PAGE_NUMBER)
 		return -EINVAL;
 
 	hidpp_log_raw(&dev->base, "Reading memory page %d, offset %#x\n", page, offset);
diff --git a/src/hidpp10.h b/src/hidpp10.h
index ec27724c..f6980f37 100644
--- a/src/hidpp10.h
+++ b/src/hidpp10.h
@@ -38,6 +38,8 @@
  * 0 is zeroed, 1 and 2 are garbage, all above 6 is garbage */
 #define HIDPP10_NUM_PROFILES 3
 
+#define HIDPP10_MAX_PAGE_NUMBER 31
+
 struct hidpp10_device  {
 	struct hidpp_device base;
 	unsigned index;