diff --git a/win/makeruntime.sh.in b/win/makeruntime.sh.in
index 5318f3d..344d9ed 100755
--- a/win/makeruntime.sh.in
+++ b/win/makeruntime.sh.in
@@ -110,6 +110,7 @@ copy_dll() {
 			wsock32
 			winspool.drv
 			ntdll
+			winhttp
 		"
 
 		# Excluo DLLs do sistema
diff --git a/win/pack.sh b/win/pack.sh
index 2b60b7f..5b1bfeb 100755
--- a/win/pack.sh
+++ b/win/pack.sh
@@ -197,6 +197,9 @@ buildLibrary()
 		export cache=${WORKDIR}/cache/${ARCH}/${1}.cache
 
 		cd ${WORKDIR}/sources/${1}
+		if [ "$?" != "0" ]; then
+			failed "Can't change to ${WORKDIR}/sources/${1}"
+		fi
 
 		if [ -x ${PROJECTDIR}/win/configure.${1} ]; then
 
@@ -298,6 +301,9 @@ buildExtraPackage()
 		export cache=${WORKDIR}/cache/${ARCH}/${1}.cache
 
 		cd ${WORKDIR}/sources/${1}
+		if [ "$?" != "0" ]; then
+			failed "Can't change to ${WORKDIR}/sources/${1}"
+		fi
 
 		if [ -x ${PROJECTDIR}/win/configure.${1} ]; then
 
--
libgit2 0.21.2