diff --git a/src/hnbap/Makefile.am b/src/hnbap/Makefile.am
index ec11926..920b8fc 100644
--- a/src/hnbap/Makefile.am
+++ b/src/hnbap/Makefile.am
@@ -1,4 +1,4 @@
-ASN_MODULE_FILES=	\
+ASN_MODULE_SOURCES=	\
 	Criticality.c	\
 	Presence.c	\
 	PrivateIE-ID.c	\
@@ -235,6 +235,6 @@
 AM_CFLAGS = $(ASN1C_CFLAGS) -I.
 
 noinst_LIBRARIES=libosmo-asn1-hnbap.a
-libosmo_asn1_hnbap_a_SOURCES=$(ASN_MODULE_FILES)
+libosmo_asn1_hnbap_a_SOURCES=$(ASN_MODULE_SOURCES)
 include_HEADERS = $(ASN_MODULE_INC)
 libosmo_asn1_hnbap_a_LIBADD=$(ASN1C_LDADD)
diff --git a/src/ranap/Makefile.am b/src/ranap/Makefile.am
index e3c4c04..59575ed 100644
--- a/src/ranap/Makefile.am
+++ b/src/ranap/Makefile.am
@@ -1,4 +1,4 @@
-ASN_MODULE_FILES=	\
+ASN_MODULE_SRC=	\
 	RANAP_Criticality.c	\
 	RANAP_Presence.c	\
 	RANAP_PrivateIE-ID.c	\
@@ -1041,6 +1041,6 @@
 AM_CFLAGS = $(ASN1C_CFLAGS) -I.
 
 noinst_LIBRARIES=libosmo-asn1-ranap.a
-libosmo_asn1_ranap_a_SOURCES=$(ASN_MODULE_FILES)
+libosmo_asn1_ranap_a_SOURCES=$(ASN_MODULE_SRC)
 include_HEADERS=$(ASN_MODULE_INC)
 libosmo_asn1_ranap_a_LIBADD=$(ASN1C_LDADD)
diff --git a/src/rua/Makefile.am b/src/rua/Makefile.am
index be0d7cc..2690252 100644
--- a/src/rua/Makefile.am
+++ b/src/rua/Makefile.am
@@ -1,4 +1,4 @@
-ASN_MODULE_FILES=	\
+ASN_MODULE_SOURCES=	\
 	RUA_Criticality.c	\
 	RUA_Presence.c	\
 	RUA_ProcedureCode.c	\
@@ -75,7 +75,7 @@
 AM_CFLAGS = $(ASN1C_CFLAGS) -I.
 
 noinst_LIBRARIES=libosmo-asn1-rua.a
-libosmo_asn1_rua_a_SOURCES=$(ASN_MODULE_FILES)
+libosmo_asn1_rua_a_SOURCES=$(ASN_MODULE_SOURCES)
 include_HEADERS=$(ASN_MODULES_INC)
 libosmo_asn1_rua_a_LIBADD=$(ASN1C_LDADD)