diff --git a/engines/sci/gfx/gfx_res_options.cpp b/engines/sci/gfx/gfx_res_options.cpp
index e19f4538791..f6316ca599d 100644
--- a/engines/sci/gfx/gfx_res_options.cpp
+++ b/engines/sci/gfx/gfx_res_options.cpp
@@ -33,11 +33,9 @@
 
 #include <ctype.h>
 
-#ifdef _MSC_VER
 #ifndef isblank
 #  define isblank(c)	((c) == ' ' || (c) == '\t')
 #endif
-#endif
 
 /*#define DEBUG*/