diff --git a/Makefile b/Makefile
index ec0752535..95d9290cb 100644
--- a/Makefile
+++ b/Makefile
@@ -109,7 +109,7 @@ OBJS = kernel/version_$(GIT_REV).o
 # is just a symlink to your actual ABC working directory, as 'make mrproper'
 # will remove the 'abc' directory and you do not want to accidentally
 # delete your work on ABC..
-ABCREV = ae6716b
+ABCREV = c5b48bb
 ABCPULL = 1
 ABCURL ?= https://github.com/berkeley-abc/abc
 ABCMKARGS = CC="$(CXX)" CXX="$(CXX)" ABC_USE_LIBSTDCXX=1