diff --git a/jenkins.sh b/jenkins.sh
index 8acd7356..c99d0738 100755
--- a/jenkins.sh
+++ b/jenkins.sh
@@ -1,6 +1,7 @@
 #!/bin/bash -e
 ./autogen.sh
 ./configure --enable-gtk-doc --enable-gtk-doc-html --enable-gtk-doc-pdf
+make clean
 make all V=1
 make check V=1
 make distcheck