diff --git a/Makefile b/Makefile
index ecc9ccc1..1d8585df 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@
 #
 
 PROGNAME    = afl
-VERSION     = 1.82b
+VERSION     = 1.83b
 
 PREFIX     ?= /usr/local
 BIN_PATH    = $(PREFIX)/bin
diff --git a/afl-cmin b/afl-cmin
index b475ca74..5179896a 100755
--- a/afl-cmin
+++ b/afl-cmin
@@ -337,8 +337,8 @@ echo
 
 echo "[*] Sorting trace sets (this may take a while)..."
 
-ls "$IN_DIR" | sed "s#^#$TRACE_DIR/#" | xargs -d '\n' -n 1 cat | sort | \
-  uniq -c | sort -n >"$TRACE_DIR/.all_uniq"
+ls "$IN_DIR" | sed "s#^#$TRACE_DIR/#" | tr '\n' '\0' | xargs -0 -n 1 cat | \
+  sort | uniq -c | sort -n >"$TRACE_DIR/.all_uniq"
 
 TUPLE_COUNT=$((`grep -c . "$TRACE_DIR/.all_uniq"`))
 
diff --git a/docs/ChangeLog b/docs/ChangeLog
index 74e460d5..0f679785 100644
--- a/docs/ChangeLog
+++ b/docs/ChangeLog
@@ -16,6 +16,16 @@ Not sure if you should upgrade? The lowest currently recommended version
 is 1.76b. If you're stuck on an earlier release, it's strongly advisable
 to get on with the times.
 
+--------------
+Version 1.83b:
+--------------
+
+  - Fixed a problem with xargs -d on non-Linux systems in afl-cmin. Spotted by
+    teor2345 and Ben Nagy.
+
+  - Fixed an implicit declaration in LLVM mode on MacOS X. Reported by 
+    Kai Zhao.
+
 --------------
 Version 1.82b:
 --------------