diff --git a/xf86drmMode.c b/xf86drmMode.c
index d3bc20ea..2b3887b3 100644
--- a/xf86drmMode.c
+++ b/xf86drmMode.c
@@ -271,9 +271,9 @@ int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
 }
 
 int drmModeAddFB2WithModifiers(int fd, uint32_t width, uint32_t height,
-                               uint32_t pixel_format, uint32_t bo_handles[4],
-                               uint32_t pitches[4], uint32_t offsets[4],
-                               uint64_t modifier[4], uint32_t *buf_id, uint32_t flags)
+                               uint32_t pixel_format, const uint32_t bo_handles[4],
+                               const uint32_t pitches[4], const uint32_t offsets[4],
+                               const uint64_t modifier[4], uint32_t *buf_id, uint32_t flags)
 {
 	struct drm_mode_fb_cmd2 f;
 	int ret;
@@ -297,8 +297,8 @@ int drmModeAddFB2WithModifiers(int fd, uint32_t width, uint32_t height,
 }
 
 int drmModeAddFB2(int fd, uint32_t width, uint32_t height,
-                  uint32_t pixel_format, uint32_t bo_handles[4],
-                  uint32_t pitches[4], uint32_t offsets[4],
+                  uint32_t pixel_format, const uint32_t bo_handles[4],
+                  const uint32_t pitches[4], const uint32_t offsets[4],
                   uint32_t *buf_id, uint32_t flags)
 {
 	return drmModeAddFB2WithModifiers(fd, width, height,
diff --git a/xf86drmMode.h b/xf86drmMode.h
index 5b390d9f..6dbe3353 100644
--- a/xf86drmMode.h
+++ b/xf86drmMode.h
@@ -369,15 +369,16 @@ extern int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
 			uint32_t *buf_id);
 /* ...with a specific pixel format */
 extern int drmModeAddFB2(int fd, uint32_t width, uint32_t height,
-			 uint32_t pixel_format, uint32_t bo_handles[4],
-			 uint32_t pitches[4], uint32_t offsets[4],
+			 uint32_t pixel_format, const uint32_t bo_handles[4],
+			 const uint32_t pitches[4], const uint32_t offsets[4],
 			 uint32_t *buf_id, uint32_t flags);
 
 /* ...with format modifiers */
 int drmModeAddFB2WithModifiers(int fd, uint32_t width, uint32_t height,
-			       uint32_t pixel_format, uint32_t bo_handles[4],
-			       uint32_t pitches[4], uint32_t offsets[4],
-			       uint64_t modifier[4], uint32_t *buf_id, uint32_t flags);
+			       uint32_t pixel_format, const uint32_t bo_handles[4],
+			       const uint32_t pitches[4], const uint32_t offsets[4],
+			       const uint64_t modifier[4], uint32_t *buf_id,
+				   uint32_t flags);
 
 /**
  * Destroies the given framebuffer.