diff --git a/ChangeLog b/ChangeLog
index 89d9f2999f..861e989f19 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2014-03-24  Stefan Liebler  <stli@linux.vnet.ibm.com>
+
+	* posix/Makefile (before-compile): Use += before-compile instead
+	of a :=.
+
 2014-03-24  Stefan Liebler <stli@linux.vnet.ibm.com>
 
 	* nptl/sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h
diff --git a/posix/Makefile b/posix/Makefile
index 83a358e9c8..328c2c5252 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -98,7 +98,7 @@ others		:= getconf
 install-bin	:= getconf
 install-others-programs	:= $(inst_libexecdir)/getconf
 
-before-compile	:= testcases.h ptestcases.h
+before-compile	+= testcases.h ptestcases.h
 
 # So they get cleaned up.
 generated += $(addprefix wordexp-test-result, 1 2 3 4 5 6 7 8 9 10) \