diff --git a/src/egl/main/eglmisc.c b/src/egl/main/eglmisc.c
index 5a607dc080a..a595e3f4d91 100644
--- a/src/egl/main/eglmisc.c
+++ b/src/egl/main/eglmisc.c
@@ -133,7 +133,7 @@ _eglUpdateAPIsString(_EGLDisplay *dpy)
    if (dpy->ClientAPIs & EGL_OPENVG_BIT)
       strcat(apis, "OpenVG ");
 
-   assert(strlen(apis) < sizeof(dpy->ClientAPIs));
+   assert(strlen(apis) < sizeof(dpy->ClientAPIsString));
 }