diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 50ee175e..d56cf15e 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -2762,6 +2762,7 @@ Winfried K
  for fixing the size of cChannel::dtypes[]
  for adding a device hook for detecting whether a device provides EIT data
  for improving deleting plugins in case the plugin uses its own memory management
+ for reporting a bug in handling newline characters in ci.c's CopyString()
 
 Hans-Werner Hilse <hilse@web.de>
  for adding the command line option --userdump to enable core dumps in case VDR
diff --git a/HISTORY b/HISTORY
index c3f2ba52..c34373d0 100644
--- a/HISTORY
+++ b/HISTORY
@@ -9513,6 +9513,7 @@ Video Disk Recorder Revision History
   with the main menu open.
 - Official release.
 
-2020-08-16:
+2020-08-17:
 
 - Updated the Italian OSD texts (thanks to Diego Pierotto).
+- Fixed handling newline characters in ci.c's CopyString() (reported by Winfried Köhler).
diff --git a/ci.c b/ci.c
index ef9675f3..ed3470b1 100644
--- a/ci.c
+++ b/ci.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: ci.c 4.31 2020/07/10 09:06:21 kls Exp $
+ * $Id: ci.c 4.32 2020/08/17 10:26:18 kls Exp $
  */
 
 #include "ci.h"
@@ -81,7 +81,7 @@ static char *CopyString(int Length, const uint8_t *Data)
   char *s = MALLOC(char, Length + 1);
   char *p = s;
   while (Length > 0) {
-        char c = *Data;
+        int c = *Data;
         if (isprint(c)) // some CAMs send funny characters in their strings, let's just skip them
            *p++ = c;
         else if (c == 0x8A) // the character 0x8A is used as newline, so let's put a real '\n' in there