diff --git a/src/wrap_malloc.c b/src/wrap_malloc.c
index d252d3a..50aa515 100644
--- a/src/wrap_malloc.c
+++ b/src/wrap_malloc.c
@@ -1,3 +1,27 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright © 2015 Franklin "Snaipe" Mathieu <http://snai.pe/>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
 #define _GNU_SOURCE
 #include <dlfcn.h>
 #include <stdlib.h>
diff --git a/src/wrap_malloc.h b/src/wrap_malloc.h
index 53d621e..617bde2 100644
--- a/src/wrap_malloc.h
+++ b/src/wrap_malloc.h
@@ -1,9 +1,33 @@
-#ifndef WRAP_MALLOC_H_
-# define WRAP_MALLOC_H_
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright © 2015 Franklin "Snaipe" Mathieu <http://snai.pe/>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 
-#ifdef SMALLOC_WRAP_MALLOC
+#ifndef CSPTR_WRAP_MALLOC_H_
+# define CSPTR_WRAP_MALLOC_H_
+
+# ifdef SMALLOC_WRAP_MALLOC
 extern void *(*real_malloc)(size_t);
 extern void (*real_free)(void *);
-#endif /* !SMALLOC_WRAP_MALLOC */
+# endif /* !SMALLOC_WRAP_MALLOC */
 
-#endif /* !WRAP_MALLOC_H_ */
+#endif /* !CSPTR_WRAP_MALLOC_H_ */