diff --git a/build.sh b/build.sh
index 0cafc46..16dd853 100755
--- a/build.sh
+++ b/build.sh
@@ -18,6 +18,8 @@
 
 OS_NAME=`uname`
 
+mkdir -p docker
+
 ## Android (ARM)
 # Detected system processor: armv7-a
 rm -f CMakeCache.txt