diff --git a/src/indexer/Makefile.am.alt b/src/indexer/Makefile.am.alt
index ba9fb7b..8c1620a 100644
--- a/src/indexer/Makefile.am.alt
+++ b/src/indexer/Makefile.am.alt
@@ -8,8 +8,7 @@ kiwix_index_SOURCES= \
 	../common/kiwix/indexer.cpp \
 	../common/kiwix/reader.cpp \
 	../common/kiwix/xapianIndexer.cpp \
-	../common/kiwix/cluceneIndexer.cpp 
-include_HEADERS= \
+	../common/kiwix/cluceneIndexer.cpp \
 	../common/kiwix/xapian/myhtmlparse.h \
 	../common/kiwix/xapian/namedentities.h \
 	../common/kiwix/xapian/htmlparse.h \
diff --git a/src/reader/Makefile.am.alt b/src/reader/Makefile.am.alt
index ee5758e..9489644 100644
--- a/src/reader/Makefile.am.alt
+++ b/src/reader/Makefile.am.alt
@@ -2,8 +2,7 @@ bin_PROGRAMS=kiwix-read
 AM_CPPFLAGS=-I$(top_srcdir)/src/common -I$(top_srcdir)/src/zimlib/include
 kiwix_read_SOURCES= \
 	kiwix-read.cpp \
-	../common/kiwix/reader.cpp
-include_HEADERS= \
+	../common/kiwix/reader.cpp \
 	../common/kiwix/reader.h
 kiwix_read_CXXFLAGS=$(ZIMLIB_CFLAGS) $(LZMA_CFLAGS) -I../common/
 
diff --git a/src/searcher/Makefile.am.alt b/src/searcher/Makefile.am.alt
index 4b3f6b2..1367204 100644
--- a/src/searcher/Makefile.am.alt
+++ b/src/searcher/Makefile.am.alt
@@ -7,8 +7,7 @@ kiwix_search_SOURCES= \
 	../common/stringTools.cpp \
 	../common/kiwix/searcher.cpp \
 	../common/kiwix/xapianSearcher.cpp \
-	../common/kiwix/cluceneSearcher.cpp 
-include_HEADERS= \
+	../common/kiwix/cluceneSearcher.cpp \
 	../common/unaccent.h \
 	../common/kiwix/searcher.h \
 	../common/resourceTools.h \