diff --git a/Makefile.am b/Makefile.am
index 78418a1..769592d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,4 +1,4 @@
-BUILT_SOURCES=generated.cpp extra_ifaces.cpp
+BUILT_SOURCES=generated.cpp extra_ifaces.cpp gen_serialization.hpp
 
 CLEANFILES=$(BUILT_SOURCES)
 
@@ -41,7 +41,12 @@
 endif
 
 generated.cpp:
-	$(AM_V_GEN)$(PYTHON) $(top_srcdir)/pimgen.py $(PIMGEN_ARGS) -d $(base_yamldir) -o $(builddir) generate-cpp
+	$(AM_V_GEN)$(PYTHON) $(top_srcdir)/pimgen.py $(PIMGEN_ARGS) -d \
+		$(base_yamldir) -o $(builddir) generate-cpp
+
+gen_serialization.hpp:
+	$(AM_V_GEN)$(PYTHON) $(top_srcdir)/pimgen.py $(PIMGEN_ARGS) -d \
+		$(base_yamldir) -o $(builddir) generate-serialization
 
 SUBDIRS = . test