diff --git a/src/egl/main/eglcontext.c b/src/egl/main/eglcontext.c
index 829050d1475..71eca6f8961 100644
--- a/src/egl/main/eglcontext.c
+++ b/src/egl/main/eglcontext.c
@@ -341,7 +341,7 @@ _eglParseContextAttribList(_EGLContext *ctx, _EGLDisplay *dpy,
       break;
    }
 
-   if ((ctx->Flags & (EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR
+   if ((ctx->Flags & ~(EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR
                       | EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR
                       | EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR)) != 0) {
       err = EGL_BAD_ATTRIBUTE;