X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Feffect.h;h=7c8c9c728e6d2addd806d1cf9b10b16a8f6c196d;hb=49da5bc0d2548418f363ceaca148e29f7929682b;hp=41534a5cf501e74988c7f9efcfa61fab7e4d5fce;hpb=d0869653a0bdfa010da0b1b00f83ea89f3abbdb1;p=libsub.git

diff --git a/src/effect.h b/src/effect.h
index 41534a5..7c8c9c7 100644
--- a/src/effect.h
+++ b/src/effect.h
@@ -17,6 +17,9 @@
 
 */
 
+#ifndef LIBSUB_EFFECT_H
+#define LIBSUB_EFFECT_H
+
 #include <boost/optional.hpp>
 #include <string>
 
@@ -31,3 +34,5 @@ enum Effect
 boost::optional<Effect> string_to_effect (std::string s);
 
 }
+
+#endif