diff --git a/content/media/Makefile.in b/content/media/Makefile.in
index b7837bfbacf..9ad742a1b40 100644
--- a/content/media/Makefile.in
+++ b/content/media/Makefile.in
@@ -6,6 +6,7 @@ DEPTH     = ../..
 topsrcdir = @top_srcdir@
 srcdir    = @srcdir@
 VPATH     = @srcdir@
+FAIL_ON_WARNINGS := 1
 
 include $(DEPTH)/config/autoconf.mk
 
diff --git a/content/media/gstreamer/Makefile.in b/content/media/gstreamer/Makefile.in
index 3e3b217bb73..5504b5f1c8b 100644
--- a/content/media/gstreamer/Makefile.in
+++ b/content/media/gstreamer/Makefile.in
@@ -6,6 +6,7 @@ DEPTH		= ../../..
 topsrcdir	= @top_srcdir@
 srcdir		= @srcdir@
 VPATH		= @srcdir@
+FAIL_ON_WARNINGS := 1
 
 include $(DEPTH)/config/autoconf.mk
 
diff --git a/content/media/ogg/Makefile.in b/content/media/ogg/Makefile.in
index 70ecddb1ab0..cc4921d557e 100644
--- a/content/media/ogg/Makefile.in
+++ b/content/media/ogg/Makefile.in
@@ -6,6 +6,7 @@ DEPTH		= ../../..
 topsrcdir	= @top_srcdir@
 srcdir		= @srcdir@
 VPATH		= @srcdir@
+FAIL_ON_WARNINGS := 1
 
 include $(DEPTH)/config/autoconf.mk
 
diff --git a/content/media/raw/Makefile.in b/content/media/raw/Makefile.in
index bd07f041e9a..cadf204eb82 100644
--- a/content/media/raw/Makefile.in
+++ b/content/media/raw/Makefile.in
@@ -7,6 +7,7 @@ DEPTH = ../../..
 topsrcdir = @top_srcdir@
 srcdir = @srcdir@
 VPATH = @srcdir@
+FAIL_ON_WARNINGS := 1
 
 include $(DEPTH)/config/autoconf.mk
 
diff --git a/content/media/wave/Makefile.in b/content/media/wave/Makefile.in
index 3ea717b9269..56b45eef5d1 100644
--- a/content/media/wave/Makefile.in
+++ b/content/media/wave/Makefile.in
@@ -6,6 +6,7 @@ DEPTH		= ../../..
 topsrcdir	= @top_srcdir@
 srcdir		= @srcdir@
 VPATH		= @srcdir@
+FAIL_ON_WARNINGS := 1
 
 include $(DEPTH)/config/autoconf.mk
 
diff --git a/content/media/webm/Makefile.in b/content/media/webm/Makefile.in
index 3610e29271f..116970c1d95 100644
--- a/content/media/webm/Makefile.in
+++ b/content/media/webm/Makefile.in
@@ -6,6 +6,7 @@ DEPTH		= ../../..
 topsrcdir	= @top_srcdir@
 srcdir		= @srcdir@
 VPATH		= @srcdir@
+FAIL_ON_WARNINGS := 1
 
 include $(DEPTH)/config/autoconf.mk