1 files changed, 4 insertions, 0 deletions
diff --git a/editor/pamfunc.c b/editor/pamfunc.c
index 1b59a398..b85cfe9b 100644
--- a/editor/pamfunc.c
+++ b/editor/pamfunc.c
@@ -20,6 +20,7 @@
 
 #include "pm_c_util.h"
 #include "mallocvar.h"
+#include "nstring.h"
 #include "shhopt.h"
 #include "pam.h"
 
@@ -422,6 +423,9 @@ main(int argc, const char *argv[]) {
     planTransform(cmdline, inpam.maxval, outpam.format,
                   &outpam.maxval, &mustChangeRaster);
 
+    if (outpam.maxval > 1 && strneq(outpam.tuple_type, "BLACKANDWHITE", 13))
+        strcpy(outpam.tuple_type, "");
+
     pnm_writepaminit(&outpam);
 
     outputRow = pnm_allocpamrow(&outpam);