diff --git a/pcre.v b/pcre.v
index cc6a8e3..0e9cc69 100644
--- a/pcre.v
+++ b/pcre.v
@@ -6,10 +6,10 @@ module pcre
 
 #include "pcre.h"
 
-[typedef]
+@[typedef]
 struct C.pcre {}
 
-[typedef]
+@[typedef]
 struct C.pcre_extra {}
 
 fn C.pcre_compile(pattern byteptr, options int, const_perr &&char, perroroffset &int, ptable voidptr) &C.pcre
diff --git a/regex.v b/regex.v
index cf0bcb3..bfedef0 100644
--- a/regex.v
+++ b/regex.v
@@ -1,6 +1,6 @@
 module pcre
 
-[heap]
+@[heap]
 struct Regex {
 pub:
 	re       &C.pcre       // A pointer to pcre structure