1 files changed, 1 insertions, 1 deletions

diff --git a/devices/gdevpcx.c b/devices/gdevpcx.c
index 1735851d2..91de4abb6 100644
--- a/devices/gdevpcx.c
+++ b/devices/gdevpcx.c
@@ -442,7 +442,7 @@ pcx_write_rle(const byte * from, const byte * end, int step, gp_file * file)
         byte data = *from;
 
         from += step;
-        if (data != *from || from == end) {
+        if (from >= end || data != *from) {
             if (data >= 0xc0)
                 gp_fputc(0xc1, file);
         } else {