diff --git a/__init__.py b/__init__.py
index 95ca79d8b..d384d0e48 100644
--- a/__init__.py
+++ b/__init__.py
@@ -1 +1 @@
-__version__ = '0.84-48-gdfbc105a'
+__version__ = '0.84-57-g73ae3793'
diff --git a/util/an-pnmtofits.c b/util/an-pnmtofits.c
index e2ae81a89..5a5ab0677 100644
--- a/util/an-pnmtofits.c
+++ b/util/an-pnmtofits.c
@@ -249,6 +249,8 @@ int main(int argc, char** args) {
     logmsg("Using %i-bit output\n", bits);
 
     hdr = fits_get_header_for_image3(W, H, outformat, depth, NULL);
+    if (depth == 3)
+        qfits_header_add(hdr, "CTYPE3", "RGB", "Tell Aladin this is RGB", NULL);
     if (bzero)
         fits_header_add_int(hdr, "BZERO", bzero, "Number that has been subtracted from pixel values");
     if (qfits_header_dump(hdr, fout)) {