diff --git a/glfw/backend_utils.c b/glfw/backend_utils.c
index 546f539fa..a2651c3d6 100644
--- a/glfw/backend_utils.c
+++ b/glfw/backend_utils.c
@@ -375,7 +375,7 @@ GLFWAPI char* utf_8_strndup(const char* source, size_t max_length) {
 int createAnonymousFile(off_t size) {
     int ret, fd = -1, shm_anon = 0;
 #ifdef HAS_MEMFD_CREATE
-    fd = memfd_create("glfw-shared", MFD_CLOEXEC | MFD_ALLOW_SEALING);
+    fd = glfw_memfd_create("glfw-shared", MFD_CLOEXEC | MFD_ALLOW_SEALING);
     if (fd < 0) return -1;
     // We can add this seal before calling posix_fallocate(), as the file
     // is currently zero-sized anyway.
diff --git a/glfw/memfd.h b/glfw/memfd.h
index 9afc0db93..4f2edf14a 100644
--- a/glfw/memfd.h
+++ b/glfw/memfd.h
@@ -10,8 +10,8 @@
 
 #include <unistd.h>
 #include <sys/syscall.h>
-static inline int memfd_create(const char *name, unsigned int flags) {
-    return syscall(__NR_memfd_create, name, flags);
+static inline int glfw_memfd_create(const char *name, unsigned int flags) {
+    return (int)syscall(__NR_memfd_create, name, flags);
 }
 
 #ifndef F_LINUX_SPECIFIC_BASE