diff --git a/AUTHORS b/AUTHORS
index 75bea8447..9180d257f 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -126,6 +126,7 @@ The following submitted code, packages or analysis, and deserve special thanks:
   Sunil Joshi
   Misty De Meo
   Kent R. Spillner
+  Konstantin
 
 Thanks to the following, who submitted detailed bug reports and excellent
 suggestions:
diff --git a/ChangeLog b/ChangeLog
index b34ba4361..1b33d807d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -76,6 +76,9 @@
 - TW-1756 The columns.t unit test fails two tests after 2300 local.
 - TW-1763 Removing the due date of a task with no due date modifies the task
           (thanks to Scott Kostyshak).
+- TW-1768 Task sync failed: "Either your credentials are incorrect, or your account
+          doesn't exist on the Taskserver."
+          (thanks to Konstantin).
 - Fixed broken build for Cygwin and older GCC
           (thanks to Richard Boß).
 - The default configuration is now 256-color only.
diff --git a/src/commands/CmdSync.cpp b/src/commands/CmdSync.cpp
index 0001fa3ab..c791a6928 100644
--- a/src/commands/CmdSync.cpp
+++ b/src/commands/CmdSync.cpp
@@ -156,6 +156,7 @@ int CmdSync::execute (std::string& output)
 
   // Send 'sync' + payload.
   Msg request;
+  request.set ("client",   PACKAGE_STRING);
   request.set ("protocol", "v1");
   request.set ("type",     "sync");
   request.set ("org",      credentials[0]);