diff --git a/glfw/cocoa_window.m b/glfw/cocoa_window.m
index 74387cda8..3c4c7b8fc 100644
--- a/glfw/cocoa_window.m
+++ b/glfw/cocoa_window.m
@@ -4194,6 +4194,9 @@ _glfwPlatformStartDrag(_GLFWwindow* window, const GLFWimage* thumbnail) {@autore
 void
 _glfwPlatformFreeDragSourceData(void) { }
 
+int
+_glfwPlatformChangeDragImage(const GLFWimage *thumbnail) { (void)thumbnail; return 0; /* TODO: Implement me */ }
+
 int
 _glfwPlatformDragDataReady(const char *mime_type) {
     if (!file_promise_providers) return 0;
diff --git a/glfw/glfw3.h b/glfw/glfw3.h
index e152d468a..997133454 100644
--- a/glfw/glfw3.h
+++ b/glfw/glfw3.h
@@ -4982,7 +4982,8 @@ GLFWAPI void glfwEndDrop(GLFWwindow *window, GLFWDragOperationType op);
 GLFWAPI GLFWdragsourcefun glfwSetDragSourceCallback(GLFWwindow* window, GLFWdragsourcefun callback);
 
 // Start a drag. If called with operations == -1 indicates that previously
-// requested data via GLFW_DRAG_DATA_REQUEST is ready.
+// requested data via GLFW_DRAG_DATA_REQUEST is ready. operations == -2 means
+// that the drag image is changed.
 GLFWAPI int glfwStartDrag(GLFWwindow* window, const GLFWDragSourceItem *items, size_t mime_count, const GLFWimage* thumbnail, int operations);
 
 /*! @brief Returns whether the specified joystick is present.
diff --git a/glfw/input.c b/glfw/input.c
index 0fa150392..0518a39dc 100644
--- a/glfw/input.c
+++ b/glfw/input.c
@@ -1166,6 +1166,7 @@ glfwStartDrag(GLFWwindow* handle, const GLFWDragSourceItem *items, size_t item_c
     assert(window != NULL);
     _GLFW_REQUIRE_INIT_OR_RETURN(EINVAL);
     if (operations == -1) return _glfwPlatformDragDataReady(items[0].mime_type);
+    if (operations == -2) return _glfwPlatformChangeDragImage(thumbnail);
     _glfwFreeDragSourceData();
     _glfw.drag.instance_id++;
     if (!items || !item_count) return 0;
diff --git a/glfw/internal.h b/glfw/internal.h
index b2ed61b28..d7e58e50a 100644
--- a/glfw/internal.h
+++ b/glfw/internal.h
@@ -837,6 +837,7 @@ void _glfwFreeDragSourceData(void);
 void _glfwPlatformFreeDragSourceData(void);
 void _glfwInputDragSourceRequest(_GLFWwindow* window, GLFWDragEvent *ev);
 int _glfwPlatformDragDataReady(const char *mime_type);
+int _glfwPlatformChangeDragImage(const GLFWimage *thumbnail);
 
 
 void _glfwInputColorScheme(GLFWColorScheme, bool);
diff --git a/glfw/null_window.c b/glfw/null_window.c
index 0c32cd40e..b46279c9d 100644
--- a/glfw/null_window.c
+++ b/glfw/null_window.c
@@ -542,6 +542,7 @@ _glfwPlatformStartDrag(_GLFWwindow* window, const GLFWimage* thumbnail) {
 }
 void _glfwPlatformFreeDragSourceData(void) {}
 int _glfwPlatformDragDataReady(const char *mime_type) { (void) mime_type; return 0; }
+int _glfwPlatformChangeDragImage(const GLFWimage *thumbnail) { (void)thumbnail; return 0; }
 
 const char** _glfwPlatformGetDropMimeTypes(GLFWDropData* drop UNUSED, int* count)
 {
diff --git a/glfw/wl_window.c b/glfw/wl_window.c
index e4f4bde7a..b8b08be8a 100644
--- a/glfw/wl_window.c
+++ b/glfw/wl_window.c
@@ -3189,6 +3189,9 @@ add_drag_watch(int fd) {
         &_glfw.wl.eventLoopData, "drag_source", fd, POLLOUT | POLLERR | POLLHUP, true, ready_for_drag_data, NULL);
 }
 
+int
+_glfwPlatformChangeDragImage(const GLFWimage *thumbnail) { (void)thumbnail; return 0; /* TODO: Implement me */ }
+
 int
 _glfwPlatformDragDataReady(const char *mime_type) {
     for (size_t i = 0; i < _glfw.wl.drag.count; i++) {
diff --git a/glfw/x11_window.c b/glfw/x11_window.c
index b3bb6c566..62985bee5 100644
--- a/glfw/x11_window.c
+++ b/glfw/x11_window.c
@@ -4474,6 +4474,9 @@ _glfwPlatformFreeDragSourceData(void) {
     _glfw.x11.drag.pending_capacity = 0;
 }
 
+int
+_glfwPlatformChangeDragImage(const GLFWimage *thumbnail) { (void)thumbnail; return 0; /* TODO: Implement me */ }
+
 int
 _glfwPlatformDragDataReady(const char *mime_type) {
     // Find the pending request for this MIME type