diff --git a/include/Makefile.am b/include/Makefile.am
index 67f32e36..665704a3 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -96,3 +96,4 @@ AM_CPPFLAGS=-I$(top_srcdir)/include
 install-data-hook:
 	test -d $(DESTDIR)$(sysincludedir) || mkdir -p $(DESTDIR)$(sysincludedir)
 	$(INSTALL_DATA) $(srcdir)/sys.h $(DESTDIR)$(sysincludedir)/asoundlib.h
+	$(INSTALL_DATA) $(srcdir)/sys.h $(DESTDIR)$(includedir)/asoundlib.h
diff --git a/utils/alsa.pc.in b/utils/alsa.pc.in
index 8de9859f..444f66d8 100644
--- a/utils/alsa.pc.in
+++ b/utils/alsa.pc.in
@@ -9,6 +9,4 @@ Version: @VERSION@
 Requires: 
 Libs: -L${libdir} -lasound
 Libs.private: @ALSA_DEPLIBS@
-# -I${includedir}/alsa below is just for backward compatibility
-# (it was set so mistakely in the older version)
-Cflags: -I${includedir} -I${includedir}/alsa
+Cflags: -I${includedir}