diff --git a/libmaxsi/io.cpp b/libmaxsi/io.cpp
index 9d474a23..fa27b7b5 100644
--- a/libmaxsi/io.cpp
+++ b/libmaxsi/io.cpp
@@ -320,7 +320,7 @@ namespace Maxsi
 	}
 
 	// TODO: This is a hacky implementation of a stupid function.
-	char* mktemp(char* templ)
+	extern "C" char* mktemp(char* templ)
 	{
 		size_t templlen = strlen(templ);
 		for ( size_t i = templlen-6UL; i < templlen; i++ )