diff --git a/intern/ghost/intern/GHOST_SystemX11.h b/intern/ghost/intern/GHOST_SystemX11.h
index ab87b6b0fe2..13ad4200ab8 100644
--- a/intern/ghost/intern/GHOST_SystemX11.h
+++ b/intern/ghost/intern/GHOST_SystemX11.h
@@ -244,7 +244,7 @@ public:
 	  * Determine the directory of the current binary
 	  * @return Unsigned char string pointing to the binary dir
 	  */
-	 const GHOST_TUns8* getBinaryDir() const
+	 const GHOST_TUns8* getBinaryDir() const;
 
 	/**
 	 * Atom used for ICCCM, WM-spec and Motif.