diff --git a/src/include/newgal.h b/src/include/newgal.h
index f20f63f1..675da4e0 100644
--- a/src/include/newgal.h
+++ b/src/include/newgal.h
@@ -1067,8 +1067,8 @@ GAL_Surface* __drm_create_surface_from_name (GHANDLE video,
         uint32_t name, uint32_t drm_format, uint32_t pixels_off,
         uint32_t width, uint32_t height, uint32_t pitch);
 
-GAL_Surface* __drm_create_surface_from_handle (GHANDLE video,
-        uint32_t handle, size_t size, uint32_t drm_format, uint32_t pixels_off,
+GAL_Surface* __drm_create_surface_from_handle (GHANDLE video, uint32_t handle,
+        size_t size, uint32_t drm_format, uint32_t pixels_off,
         uint32_t width, uint32_t height, uint32_t pitch);
 
 GAL_Surface* __drm_create_surface_from_prime_fd (GHANDLE video,
diff --git a/src/newgal/drm/drmvideo.c b/src/newgal/drm/drmvideo.c
index d62a3cca..f7fb3ca4 100644
--- a/src/newgal/drm/drmvideo.c
+++ b/src/newgal/drm/drmvideo.c
@@ -3575,7 +3575,7 @@ GAL_Surface* __drm_create_surface_from_name (GHANDLE video,
 
 /* called by drmCreateDCFromHandle */
 GAL_Surface* __drm_create_surface_from_handle (GHANDLE video, uint32_t handle,
-        unsigned long size, uint32_t drm_format, uint32_t pixels_off,
+        size_t size, uint32_t drm_format, uint32_t pixels_off,
         uint32_t width, uint32_t height, uint32_t pitch)
 {
     GAL_VideoDevice *this = (GAL_VideoDevice *)video;