diff --git a/src/common/cairo.cpp b/src/common/cairo.cpp
index 5b53e8d89c..6879b021e3 100644
--- a/src/common/cairo.cpp
+++ b/src/common/cairo.cpp
@@ -398,7 +398,7 @@ bool wxCairoInit()
 // the following code will not make sense on OpenVMS : dynamically loading
 // of the cairo library is not possible, since on OpenVMS the library is
 // created as a static library.
-#if !defined(__WXGTK__) || defined(__VMS)
+#if !( defined(__WXGTK__) || defined(__VMS) )
 extern "C"
 {