diff --git a/giscanner/scannerlexer.l b/giscanner/scannerlexer.l
index 38e21534edfa6c92f2ecb6c8a68b6d0360c21c64..4ca62d21f8fa8e663db152415d0ef85cfe6107f5 100644
--- a/giscanner/scannerlexer.l
+++ b/giscanner/scannerlexer.l
@@ -193,6 +193,7 @@ stringtext				([^\\\"])|(\\.)
 "__declspec(deprecated(".*"))"		{ /* Ignore */ }
 "__declspec"[\t ]*"("[a-z\t ]+")"	{ /* Ignore */ }
 "__stdcall" 			        { /* ignore */ }
+"__fastcall" 			        { /* ignore */ }
 "__w64"					{ /* ignore */ }
 
 "G_GINT64_CONSTANT"			{ return INTL_CONST; }