diff --git a/libImaging/Pack.c b/libImaging/Pack.c
index 0d84b65bf..00f9512f2 100644
--- a/libImaging/Pack.c
+++ b/libImaging/Pack.c
@@ -535,6 +535,7 @@ static struct {
     {"RGBa",	"BGRa",		32,	ImagingPackBGRA},
     {"RGBa",	"aBGR",		32,	ImagingPackABGR},
     {"BGRa",	"BGRa",		32,	copy4},
+    {"BGRa",	"RGBa",		32,	ImagingPackBGRA},
 
     /* true colour w. padding */
     {"RGBX",	"RGBX",		32,	copy4},