diff --git a/gio/fen/Makefile.am b/gio/fen/Makefile.am
index 52af1cf7c..0a22a6456 100644
--- a/gio/fen/Makefile.am
+++ b/gio/fen/Makefile.am
@@ -20,6 +20,7 @@ libfen_la_SOURCES = 		\
 	$(NULL)
 
 libfen_la_CFLAGS = \
+	$(GLIB_HIDDEN_VISIBILITY_CFLAGS)	\
 	-DG_LOG_DOMAIN=\"GLib-GIO\"	\
 	$(gio_INCLUDES) 			\
 	$(GLIB_DEBUG_FLAGS)		\
diff --git a/gio/inotify/Makefile.am b/gio/inotify/Makefile.am
index 22351268b..b51a0a903 100644
--- a/gio/inotify/Makefile.am
+++ b/gio/inotify/Makefile.am
@@ -22,6 +22,7 @@ libinotify_la_SOURCES = 		\
 	$(NULL)
 
 libinotify_la_CFLAGS = \
+	$(GLIB_HIDDEN_VISIBILITY_CFLAGS)	\
 	-DG_LOG_DOMAIN=\"GLib-GIO\"	\
 	$(gio_INCLUDES) 		\
 	$(GLIB_DEBUG_FLAGS)		\
diff --git a/gio/kqueue/Makefile.am b/gio/kqueue/Makefile.am
index 40fd1fee0..652c43ed6 100644
--- a/gio/kqueue/Makefile.am
+++ b/gio/kqueue/Makefile.am
@@ -26,6 +26,7 @@ libkqueue_la_SOURCES = \
        $(NULL)
 
 libkqueue_la_CFLAGS = \
+       $(GLIB_HIDDEN_VISIBILITY_CFLAGS) \
        -DG_LOG_DOMAIN=\"GLib-GIO\" \
        $(gio_INCLUDES) \
        $(GLIB_DEBUG_FLAGS) \
diff --git a/gio/win32/Makefile.am b/gio/win32/Makefile.am
index 6f85a1586..b75bc36de 100644
--- a/gio/win32/Makefile.am
+++ b/gio/win32/Makefile.am
@@ -19,6 +19,7 @@ libgiowin32_la_SOURCES =			\
 	$(NULL)
 
 libgiowin32_la_CFLAGS = \
+	$(GLIB_HIDDEN_VISIBILITY_CFLAGS)	\
 	-DG_LOG_DOMAIN=\"GLib-GIO\"	\
 	$(gio_INCLUDES)			\
 	$(GLIB_DEBUG_FLAGS)		\
diff --git a/gio/xdgmime/Makefile.am b/gio/xdgmime/Makefile.am
index 80783440d..fa39d05e5 100644
--- a/gio/xdgmime/Makefile.am
+++ b/gio/xdgmime/Makefile.am
@@ -4,6 +4,7 @@ AM_CPPFLAGS = -DXDG_PREFIX=_gio_xdg
 
 noinst_LTLIBRARIES = libxdgmime.la
 
+libxdgmime_la_CFLAGS = $(GLIB_HIDDEN_VISIBILITY_CFLAGS)
 libxdgmime_la_SOURCES = \
 	xdgmime.c 	\
 	xdgmime.h	\
diff --git a/glib/gnulib/Makefile.am b/glib/gnulib/Makefile.am
index ae8283d51..8ad4889b2 100644
--- a/glib/gnulib/Makefile.am
+++ b/glib/gnulib/Makefile.am
@@ -6,6 +6,7 @@ INCLUDES = $(glib_INCLUDES) -DG_LOG_DOMAIN=\"GLib\" \
 
 noinst_LTLIBRARIES = libgnulib.la
 
+libgnulib_la_CFLAGS = $(GLIB_HIDDEN_VISIBILITY_CFLAGS)
 libgnulib_la_SOURCES = 	\
 	asnprintf.c \
 	printf-args.c \
diff --git a/glib/libcharset/Makefile.am b/glib/libcharset/Makefile.am
index f5362df5a..0dd4f50b6 100644
--- a/glib/libcharset/Makefile.am
+++ b/glib/libcharset/Makefile.am
@@ -6,6 +6,7 @@ INCLUDES = 			\
 
 noinst_LTLIBRARIES = libcharset.la
 
+libcharset_la_CFLAGS = $(GLIB_HIDDEN_VISIBILITY_CFLAGS)
 libcharset_la_SOURCES =    	\
 	libcharset.h		\
 	localcharset.h		\
diff --git a/glib/pcre/Makefile.am b/glib/pcre/Makefile.am
index 1148a92ca..53669a0b2 100644
--- a/glib/pcre/Makefile.am
+++ b/glib/pcre/Makefile.am
@@ -25,6 +25,7 @@ libpcre_la_CPPFLAGS = \
 	$(AM_CPPFLAGS)
 
 libpcre_la_CFLAGS = \
+	$(GLIB_HIDDEN_VISIBILITY_CFLAGS) \
 	$(PCRE_WARN_CFLAGS) \
 	$(DEP_CFLAGS) \
 	$(AM_CFLAGS)