diff --git a/src/cuckooSearch.jl b/src/cuckooSearch.jl
index a65c2b571adde6d51e02a9d4a2e841c76e9589a1..94d4c717ba55296c9637e642d67a268c8375fcd6 100644
--- a/src/cuckooSearch.jl
+++ b/src/cuckooSearch.jl
@@ -1,3 +1,26 @@
+#Copyright (c) 2010, Xin-She Yang
+#All rights reserved.
+#
+#Redistribution and use in source and binary forms, with or without
+#modification, are permitted provided that the following conditions are met:
+#
+#* Redistributions of source code must retain the above copyright notice, this
+#  list of conditions and the following disclaimer.
+#
+#* Redistributions in binary form must reproduce the above copyright notice,
+#  this list of conditions and the following disclaimer in the documentation
+#  and/or other materials provided with the distribution
+#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+#AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+#IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+#DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+#FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+#DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+#SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+#CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+#OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
 using Devectorize
 """
 `cuckoo_search(f,X0;Lb=-convert(Float64,Inf),Ub=convert(Float64,Inf),n=25,pa=0.25, Tol=1.0e-5, max_iter = 1e5, timeout = Inf)`\n