diff --git a/src/mod/applications/mod_fax/Makefile b/src/mod/applications/mod_fax/Makefile
index ff2991e7cc..3a19ceecc2 100644
--- a/src/mod/applications/mod_fax/Makefile
+++ b/src/mod/applications/mod_fax/Makefile
@@ -3,7 +3,7 @@ BASE=../../../..
 SPANDSP_DIR=$(BASE)/libs/spandsp
 SPANDSP_LA=$(SPANDSP_DIR)/src/libspandsp.la
 
-LOCAL_CFLAGS=-I$(SPANDSP_DIR)/src -w
+LOCAL_CFLAGS=-I$(SPANDSP_DIR)/src
 LOCAL_LIBADD=$(SPANDSP_LA)
 
 include $(BASE)/build/modmake.rules
diff --git a/src/mod/applications/mod_fax/mod_fax.c b/src/mod/applications/mod_fax/mod_fax.c
index 25658e7a0c..18678aa297 100644
--- a/src/mod/applications/mod_fax/mod_fax.c
+++ b/src/mod/applications/mod_fax/mod_fax.c
@@ -513,7 +513,7 @@ void process_fax(switch_core_session_t *session, const char *data, application_m
 			goto done;
 		} else if (pvt->app_mode == FUNCTION_RX) {
 			char *fname;
-			char *prefix;
+			const char *prefix;
 			switch_time_t time;
 
 			time = switch_time_now();