diff --git a/src/backends/meta-egl-ext.h b/src/backends/meta-egl-ext.h
index d93d757a7..8705e7d5b 100644
--- a/src/backends/meta-egl-ext.h
+++ b/src/backends/meta-egl-ext.h
@@ -66,6 +66,7 @@ typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYWAYLANDBUFFERWL) (EGLDisplay dpy, st
 #ifndef EGL_EXT_stream_acquire_mode
 #define EGL_EXT_stream_acquire_mode 1
 #define EGL_CONSUMER_AUTO_ACQUIRE_EXT         0x332B
+#define EGL_RESOURCE_BUSY_EXT                 0x3353
 typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMERACQUIREATTRIBEXTPROC) (EGLDisplay dpy, EGLStreamKHR stream, const EGLAttrib *attrib_list);
 #ifdef EGL_EGLEXT_PROTOTYPES
 EGLAPI EGLBoolean EGLAPIENTRY eglStreamConsumerAcquireAttribEXT (EGLDisplay dpy, EGLStreamKHR stream, const EGLAttrib *attrib_list);
diff --git a/src/backends/meta-egl.c b/src/backends/meta-egl.c
index 92613db64..b618d97de 100644
--- a/src/backends/meta-egl.c
+++ b/src/backends/meta-egl.c
@@ -133,6 +133,8 @@ get_egl_error_str (EGLint error_number)
       break;
     case EGL_BAD_OUTPUT_LAYER_EXT:
       return "An EGLOutputLayerEXT argument does not name a valid EGL output layer.";
+    case EGL_RESOURCE_BUSY_EXT:
+      return "The operation could not be completed on the requested resource because it is temporary unavailable.";
     default:
       return "Unknown error";
       break;