6 files changed, 6 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index 1edbf2a54..0315beadc 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,2 +1,3 @@
+# This Makefile.am is in the public domain
 AM_CPPFLAGS = -I$(top_srcdir)/src/include
 SUBDIRS = include util pq mint lib
diff --git a/src/include/Makefile.am b/src/include/Makefile.am
index 40382dcc1..60f8a3491 100644
--- a/src/include/Makefile.am
+++ b/src/include/Makefile.am
@@ -1,3 +1,4 @@
+# This Makefile.am is in the public domain
 talerincludedir = $(includedir)/taler
 
 talerinclude_HEADERS = \
diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am
index 8632fc15b..f91ca32c1 100644
--- a/src/lib/Makefile.am
+++ b/src/lib/Makefile.am
@@ -1,3 +1,4 @@
+# This Makefile.am is in the public domain
 AM_CPPFLAGS = -I$(top_srcdir)/src/include
 
 lib_LTLIBRARIES = \
diff --git a/src/mint/Makefile.am b/src/mint/Makefile.am
index 55d627c41..af0b48e84 100644
--- a/src/mint/Makefile.am
+++ b/src/mint/Makefile.am
@@ -1,3 +1,4 @@
+# This Makefile.am is in the public domain
 AM_CPPFLAGS = -I$(top_srcdir)/src/include -I$(top_srcdir)/src/pq/ $(POSTGRESQL_CPPFLAGS)
 
 lib_LTLIBRARIES = \
diff --git a/src/pq/Makefile.am b/src/pq/Makefile.am
index 9ce58c1ff..c94029bc6 100644
--- a/src/pq/Makefile.am
+++ b/src/pq/Makefile.am
@@ -1,3 +1,4 @@
+# This Makefile.am is in the public domain
 AM_CPPFLAGS = -I$(top_srcdir)/src/include $(LIBGCRYPT_CFLAGS) $(POSTGRESQL_CPPFLAGS)
 
 talerincludedir = $(includedir)/taler
diff --git a/src/util/Makefile.am b/src/util/Makefile.am
index b62e8a42f..a7f9fe3f7 100644
--- a/src/util/Makefile.am
+++ b/src/util/Makefile.am
@@ -1,3 +1,4 @@
+# This Makefile.am is in the public domain
 AM_CPPFLAGS = -I$(top_srcdir)/src/include $(LIBGCRYPT_CFLAGS) $(POSTGRESQL_CPPFLAGS)
 
 lib_LTLIBRARIES = \