diff --git a/kallithea/config/post_receive_tmpl.py b/kallithea/config/post_receive_tmpl.py
--- a/kallithea/config/post_receive_tmpl.py
+++ b/kallithea/config/post_receive_tmpl.py
@@ -1,6 +1,15 @@
 import os
 import sys
 
+# set output mode on windows to binary for stderr
+# this prevents python (or the windows console) from replacing \n with  \r\n
+# git doesn't display remote output lines that contain \r
+# and therefore without this modification git would displayes empty lines
+# instead of the exception output
+if sys.platform == "win32":
+    import msvcrt
+    msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
+
 KALLITHEA_HOOK_VER = '_TMPL_'
 os.environ['KALLITHEA_HOOK_VER'] = KALLITHEA_HOOK_VER
 from kallithea.lib.hooks import handle_git_post_receive as _handler
diff --git a/kallithea/config/pre_receive_tmpl.py b/kallithea/config/pre_receive_tmpl.py
--- a/kallithea/config/pre_receive_tmpl.py
+++ b/kallithea/config/pre_receive_tmpl.py
@@ -1,6 +1,15 @@
 import os
 import sys
 
+# set output mode on windows to binary for stderr
+# this prevents python (or the windows console) from replacing \n with  \r\n
+# git doesn't display remote output lines that contain \r
+# and therefore without this modification git would displayes empty lines
+# instead of the exception output
+if sys.platform == "win32":
+    import msvcrt
+    msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
+
 KALLITHEA_HOOK_VER = '_TMPL_'
 os.environ['KALLITHEA_HOOK_VER'] = KALLITHEA_HOOK_VER
 from kallithea.lib.hooks import handle_git_pre_receive as _handler