diff --git a/glfw/cocoa_window.m b/glfw/cocoa_window.m
index 10da335ce..831fae3db 100644
--- a/glfw/cocoa_window.m
+++ b/glfw/cocoa_window.m
@@ -1505,6 +1505,15 @@ update_drop_state(_GLFWwindow *window, size_t accepted_count, GLFWDropEventType
     if (t == GLFW_DROP_ENTER || t == GLFW_DROP_MOVE) d->drag_accepted = accepted_count > 0;
 }
 
+static void
+update_drop_source_actions(_GLFWwindow *window, id<NSDraggingInfo> sender) {
+    NSDragOperation src_ops = [sender draggingSourceOperationMask];
+    window->drop_operation.source_actions = GLFW_DRAG_OPERATION_NONE;
+    if (src_ops & NSDragOperationCopy) window->drop_operation.source_actions |= GLFW_DRAG_OPERATION_COPY;
+    if (src_ops & NSDragOperationMove) window->drop_operation.source_actions |= GLFW_DRAG_OPERATION_MOVE;
+    if (src_ops & NSDragOperationGeneric) window->drop_operation.source_actions |= GLFW_DRAG_OPERATION_GENERIC;
+}
+
 // Reset the working copy of mimes so the next callback sees the full original
 // list.  Returns false on allocation failure.
 static bool
@@ -1581,11 +1590,7 @@ reset_drop_copy_mimes(_GLFWDropData *d) {
     window->ns.drop_data.mimes = mime_array;
     window->ns.drop_data.mimes_count = mime_count;
     bool from_self = ([sender draggingSource] != nil);
-    NSDragOperation src_ops = [sender draggingSourceOperationMask];
-    window->drop_operation.source_actions = GLFW_DRAG_OPERATION_NONE;
-    if (src_ops & NSDragOperationCopy) window->drop_operation.source_actions |= GLFW_DRAG_OPERATION_COPY;
-    if (src_ops & NSDragOperationMove) window->drop_operation.source_actions |= GLFW_DRAG_OPERATION_MOVE;
-    if (src_ops & NSDragOperationGeneric) window->drop_operation.source_actions |= GLFW_DRAG_OPERATION_GENERIC;
+    update_drop_source_actions(window, sender);
     _GLFWDropData *d = &window->ns.drop_data;
     if (reset_drop_copy_mimes(d)) {
         size_t accepted_count = _glfwInputDropEvent(window, GLFW_DROP_ENTER, xpos, ypos, d->copy_mimes, d->copy_mimes_count, from_self);
@@ -1603,11 +1608,7 @@ reset_drop_copy_mimes(_GLFWDropData *d) {
     double ypos = contentRect.size.height - pos.y;
 
     bool from_self = ([sender draggingSource] != nil);
-    NSDragOperation src_ops = [sender draggingSourceOperationMask];
-    window->drop_operation.source_actions = GLFW_DRAG_OPERATION_NONE;
-    if (src_ops & NSDragOperationCopy) window->drop_operation.source_actions |= GLFW_DRAG_OPERATION_COPY;
-    if (src_ops & NSDragOperationMove) window->drop_operation.source_actions |= GLFW_DRAG_OPERATION_MOVE;
-    if (src_ops & NSDragOperationGeneric) window->drop_operation.source_actions |= GLFW_DRAG_OPERATION_GENERIC;
+    update_drop_source_actions(window, sender);
     _GLFWDropData *d = &window->ns.drop_data;
     if (reset_drop_copy_mimes(d)) {
         size_t accepted_count = _glfwInputDropEvent(window, GLFW_DROP_MOVE, xpos, ypos, d->copy_mimes, d->copy_mimes_count, from_self);