diff --git a/src/mod/endpoints/mod_sofia/Makefile.am b/src/mod/endpoints/mod_sofia/Makefile.am
index b25c429347..a9ed1aad22 100644
--- a/src/mod/endpoints/mod_sofia/Makefile.am
+++ b/src/mod/endpoints/mod_sofia/Makefile.am
@@ -44,7 +44,7 @@ BUILT_SOURCES = $(SOFIALA)
 $(mod_sofia_la_SOURCES) : $(BUILT_SOURCES)
 
 $(SOFIALA): $(SOFIA_DIR) $(SOFIA_DIR)/.update
-	cd $(SOFIA_DIR) && $(MAKE)
+	cd $(SOFIA_DIR) && $(MAKE) SOFIA_CFLAGS="$(AM_CFLAGS)"
 	$(TOUCH_TARGET)
 
 ../../../../libs/sofia-sip/libsofia-sip-ua/nua/sofia-sip/nua_tag.h: $(SOFIALA)