diff --git a/autogen.sh b/autogen.sh
index 01c075c9..5fea0bac 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,5 +1,9 @@
 #!/bin/sh
 
+# Change to source tree
+srcdir=`dirname "$0"`
+[ -z "$srcdir" ] || cd "$srcdir"
+
 echo "Generating configure files... may take a while."
 
 autoreconf --install --force && \