diff --git a/build_sdk.sh b/build_sdk.sh
index f1715d5..e01579d 100755
--- a/build_sdk.sh
+++ b/build_sdk.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
 rm -rf ./lib
+rm -rf ARDroneLib/Soft/Build/targets_versions
 mkdir ./lib
 make -f sdk.makefile