diff --git a/debian/libwsutil0.symbols b/debian/libwsutil0.symbols
index 69847c743d..016bbd6a00 100644
--- a/debian/libwsutil0.symbols
+++ b/debian/libwsutil0.symbols
@@ -78,7 +78,6 @@ libwsutil.so.0 libwsutil0 #MINVER#
  find_last_pathname_separator@Base 1.12.0~rc1
  format_size_wmem@Base 3.5.0
  free_progdirs@Base 2.3.0
- g_memdup2@Base 3.5.0
  get_basename@Base 1.12.0~rc1
  get_copyright_info@Base 1.99.0
  get_cur_groupname@Base 1.10.0
diff --git a/wsutil/CMakeLists.txt b/wsutil/CMakeLists.txt
index 6c4cfadd04..b9ac0dafcc 100644
--- a/wsutil/CMakeLists.txt
+++ b/wsutil/CMakeLists.txt
@@ -127,7 +127,6 @@ set(WSUTIL_COMMON_FILES
 	to_str.c
 	type_util.c
 	unicode-utils.c
-	glib-compat.c
 	ws_assert.c
 	ws_getopt.c
 	ws_mempbrk.c
diff --git a/wsutil/glib-compat.c b/wsutil/glib-compat.c
deleted file mode 100644
index 8744a9528a..0000000000
--- a/wsutil/glib-compat.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
-* Provide some functions that are not present in older
-* GLIB versions (down to 2.22)
-*
-* Wireshark - Network traffic analyzer
-* By Gerald Combs <gerald@wireshark.org>
-* Copyright 1998 Gerald Combs
-*
-* SPDX-License-Identifier: GPL-2.0-or-later
-*/
-#include "config.h"
-
-#include <glib.h>
-#include <string.h>
-
-#include "glib-compat.h"
-#if !GLIB_CHECK_VERSION(2, 68, 0)
-/**
-* g_memdup2:
-* mem: the memory to copy
-* byte_size: the number of bytes to copy.
-*
-* Allocates byte_size bytes of memory, and copies byte_size bytes into it from mem . If mem is NULL it returns NULL.
-*
-* This replaces g_memdup(), which was prone to integer overflows when converting the argument from a gsize to a guint.
-*
-* Since: 2.68
-**/
-gpointer
-g_memdup2(gconstpointer mem, gsize byte_size)
-{
-  gpointer new_mem;
-
-  if (mem && byte_size != 0) {
-      new_mem = g_malloc(byte_size);
-      memcpy(new_mem, mem, byte_size);
-  }
-  else
-    new_mem = NULL;
-
-  return new_mem;
-}
-#endif
diff --git a/wsutil/glib-compat.h b/wsutil/glib-compat.h
index 788f5fb41c..7864dffc2c 100644
--- a/wsutil/glib-compat.h
+++ b/wsutil/glib-compat.h
@@ -21,7 +21,20 @@ extern "C" {
 #endif /* __cplusplus */
 
 #if !GLIB_CHECK_VERSION(2, 68, 0)
-WS_DLL_PUBLIC gpointer g_memdup2(gconstpointer mem, gsize byte_size);
+static inline gpointer
+g_memdup2(gconstpointer mem, gsize byte_size)
+{
+  gpointer new_mem;
+
+  if (mem && byte_size != 0) {
+      new_mem = g_malloc(byte_size);
+      memcpy(new_mem, mem, byte_size);
+  }
+  else
+    new_mem = NULL;
+
+  return new_mem;
+}
 #endif
 
 #ifdef __cplusplus