diff --git a/src/rspro/Makefile.am b/src/rspro/Makefile.am
index 4744886..4d3f18a 100644
--- a/src/rspro/Makefile.am
+++ b/src/rspro/Makefile.am
@@ -17,6 +17,10 @@
 	ConnectClientRes.c \
 	CreateMappingReq.c \
 	CreateMappingRes.c \
+	ErrorCode.c \
+	ErrorInd.c \
+	ErrorSeverity.c \
+	ErrorString.c \
 	IpAddress.c \
 	IpPort.c \
 	Ipv4Address.c \
@@ -56,6 +60,10 @@
 	ConnectClientRes.h \
 	CreateMappingReq.h \
 	CreateMappingRes.h \
+	ErrorCode.h \
+	ErrorInd.h \
+	ErrorSeverity.h \
+	ErrorString.h \
 	IpAddress.h \
 	IpPort.h \
 	Ipv4Address.h \