diff --git a/meson.build b/meson.build
index e89ce6872a..13517714b7 100644
--- a/meson.build
+++ b/meson.build
@@ -370,6 +370,13 @@ glib_dep       = dependency('glib-2.0', version: glib_req)
 gobject_dep    = dependency('gobject-2.0', version: glib_req)
 if os_win32
   giowin32_dep = dependency('gio-windows-2.0', version: glib_req, required: win32_enabled)
+  if giowin32_dep.version().version_compare('<2.75.0')
+    if cc.get_id() == 'msvc' and get_option('default_library') != 'static'
+      # Override _GLIB_EXTERN on Visual Studio for media modules for glib <= 2.74.x, so that we
+      # avoid error C2375 (redefinition; different linkage) when building the g_io_module_*() bits
+      cdata.set('MODULES_OVERRIDE_GLIB_EXTERN', true)
+    endif
+  endif
 endif
 if os_unix
   giounix_dep  = dependency('gio-unix-2.0', version: glib_req, required: false)
diff --git a/modules/media/gtkffmediafile.c b/modules/media/gtkffmediafile.c
index 2839cb8174..0103e5bd16 100644
--- a/modules/media/gtkffmediafile.c
+++ b/modules/media/gtkffmediafile.c
@@ -19,6 +19,15 @@
 
 #include "config.h"
 
+/*
+ * Sadly, we need this to build on Visual Studio against glib-2.74.x or earlier,
+ * otherwise the build will fail when building the g_io_module_*() bits with error C2375
+ * (redefinition; different linkage).  This must be before including the Gio headers.
+ */
+#if defined (_MSC_VER) && defined (MODULES_OVERRIDE_GLIB_EXTERN)
+# define _GLIB_EXTERN __declspec(dllexport) extern
+#endif
+
 #include "gtkffmediafileprivate.h"
 
 #include <glib/gi18n-lib.h>
diff --git a/modules/media/gtkgstmediafile.c b/modules/media/gtkgstmediafile.c
index 5487bb0571..7353539ef6 100644
--- a/modules/media/gtkgstmediafile.c
+++ b/modules/media/gtkgstmediafile.c
@@ -19,6 +19,15 @@
 
 #include "config.h"
 
+/*
+ * Sadly, we need this to build on Visual Studio against glib-2.74.x or earlier,
+ * otherwise the build will fail when building the g_io_module_*() bits with error C2375
+ * (redefinition; different linkage).  This must be before including the Gio headers.
+ */
+#if defined (_MSC_VER) && defined (MODULES_OVERRIDE_GLIB_EXTERN)
+# define _GLIB_EXTERN __declspec(dllexport) extern
+#endif
+
 #include "gtkgstmediafileprivate.h"
 #include "gtkgstpaintableprivate.h"