diff --git a/src/libImaging/Pack.c b/src/libImaging/Pack.c
index 24640c6ef..138d50284 100644
--- a/src/libImaging/Pack.c
+++ b/src/libImaging/Pack.c
@@ -245,7 +245,7 @@ packLA(UINT8 *out, const UINT8 *in, int pixels) {
 static void
 packRG(UINT8 *out, const UINT8 *in, int pixels) {
     int i;
-    /* LA, pixel interleaved */
+    /* RG, pixel interleaved */
     for (i = 0; i < pixels; i++) {
         out[0] = in[R];
         out[1] = in[G];
diff --git a/src/libImaging/Unpack.c b/src/libImaging/Unpack.c
index 414e5a90f..142af9fb2 100644
--- a/src/libImaging/Unpack.c
+++ b/src/libImaging/Unpack.c
@@ -429,7 +429,7 @@ unpackLA(UINT8 *_out, const UINT8 *in, int pixels) {
 static void
 unpackRG(UINT8 *_out, const UINT8 *in, int pixels) {
     int i;
-    /* LA, pixel interleaved */
+    /* RG, pixel interleaved */
     for (i = 0; i < pixels; i++) {
         _out[R] = in[0];
         _out[G] = in[1];