diff --git a/src/frontends/controllers/Kernel.C b/src/frontends/controllers/Kernel.C
index 7a4ea142f6..c604f767b0 100644
--- a/src/frontends/controllers/Kernel.C
+++ b/src/frontends/controllers/Kernel.C
@@ -51,7 +51,7 @@ bool Kernel::isBufferAvailable() const
 {
 	if (!lyxview_.view())
 		return false;
-	return lyxview_.view()->buffer();
+	return lyxview_.view()->buffer() != 0;
 }