diff --git a/src/fontstash.h b/src/fontstash.h
index ce57238..967f78a 100644
--- a/src/fontstash.h
+++ b/src/fontstash.h
@@ -153,7 +153,7 @@ typedef struct FONSttFontImpl FONSttFontImpl;
 
 static FT_Library ftLibrary;
 
-int fons__tt_init()
+int fons__tt_init(FONScontext *context)
 {
 	FT_Error ftError;
 	ftError = FT_Init_FreeType(&ftLibrary);