diff --git a/CHANGES b/CHANGES
index 4dcfb406..f297867a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -47,3 +47,7 @@ o msgfmt: bugfix: parse() had small memory leaks
 1.1.3-3
 -------
 o compiling release version with NDEBUG (switching off assertions)
+
+1.1.3-4
+-------
+o bugfix: client handler process did not exit after connection reset by client
diff --git a/VERSION b/VERSION
index 35064fbc..45c2b86e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.1.3-3-dev
+1.1.3-4-dev
diff --git a/make/ytools.mk.in b/make/ytools.mk.in
index 7daaa7c5..8b6418b4 100644
--- a/make/ytools.mk.in
+++ b/make/ytools.mk.in
@@ -49,8 +49,8 @@ else
 endif
 
 ifeq ($(USE_COMPILER_DEBUG_OPTS),true)
-	PROJECT_CFLAGS      += -Wall -g3
-	PROJECT_CPPFLAGS    += -Wall -g3
+	PROJECT_CFLAGS      += -Wall -g3 -D_DO_TRACE_
+	PROJECT_CPPFLAGS    += -Wall -g3 -D_DO_TRACE_
 	PROJECT_LDFLAGS     += -Wall -g3
 else
 	ifeq ($(USE_COMPILER_OPTIMIZATION_OPTS),true)