diff --git a/sci-biology/samri/ChangeLog b/sci-biology/samri/ChangeLog
new file mode 100644
index 0000000..2bd93f1
--- /dev/null
+++ b/sci-biology/samri/ChangeLog
@@ -0,0 +1,2 @@
+  12 Nov 2019;  <chymera@gentoo.org> metadata.xml, samri-0.4.ebuild:
+  sci-biology/samri:
diff --git a/sci-biology/samri/metadata.xml b/sci-biology/samri/metadata.xml
index 4e5d69e..4203e6f 100644
--- a/sci-biology/samri/metadata.xml
+++ b/sci-biology/samri/metadata.xml
@@ -1,14 +1,22 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version='1.0' encoding='UTF-8'?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-  <maintainer type="project">
-    <email>chr@chymera.eu</email>
-    <name>Horea Christian</name>
-  </maintainer>
-  <longdescription lang="en">
-  SAMRI (Small Animal Magnetic Resonance Imaging) — pronounced "Sam-rye" — provides fMRI preprocessing, metadata parsing, and data analysis functions and workflows. SAMRI integrates functionalities from a number of other packages (listed under the dependencies section below) to create higher-level tools. The resulting interfaces aim to maximize reproducibility, simplify batch processing, and minimize the number of function calls required to generate figures and statistical summaries from the raw data.
-</longdescription>
-  <upstream>
-    <remote-id type="github">IBT-FMI/SAMRI</remote-id>
-  </upstream>
+	<maintainer type="person">
+		<email>chr@chymera.eu</email>
+		<name>Horea Christian</name>
+	</maintainer>
+	<longdescription lang="en">
+		SAMRI (Small Animal Magnetic Resonance Imaging) — pronounced "Sam-rye" — provides
+		fMRI preprocessing, metadata parsing, and data analysis functions and workflows.
+		SAMRI integrates functionalities from a number of other packages to create
+		higher-level tools. The resulting interfaces aim to maximize reproducibility,
+		simplify batch processing, and minimize the number of function calls required to
+		generate figures and statistical summaries from the raw data.
+	</longdescription>
+	<use>
+		<flag name="labbookdb">Pipe data from LabbookDB databases.</flag>
+	</use>
+	<upstream>
+		<remote-id type="github">IBT-FMI/SAMRI</remote-id>
+	</upstream>
 </pkgmetadata>
diff --git a/sci-biology/samri/samri-0.4.ebuild b/sci-biology/samri/samri-0.4.ebuild
index 0156c8d..bfd4390 100644
--- a/sci-biology/samri/samri-0.4.ebuild
+++ b/sci-biology/samri/samri-0.4.ebuild
@@ -13,7 +13,7 @@ SRC_URI="https://github.com/IBT-FMI/SAMRI/archive/${PV}.tar.gz -> ${P}.tar.gz"
 
 LICENSE="GPL-3"
 SLOT="0"
-IUSE="test"
+IUSE="labbookdb test"
 KEYWORDS="~amd64 ~x86"
 
 DEPEND="
@@ -35,6 +35,7 @@ RDEPEND="
 	>=sci-biology/fsl-5.0.9
 	sci-biology/bru2nii
 	sci-biology/mouse-brain-atlases
+	labbookdb? ( sci-libs/labbookdb[${PYTHON_USEDEP}] )
 	sci-libs/nibabel[${PYTHON_USEDEP}]
 	>=sci-libs/nipy-0.4.1[${PYTHON_USEDEP}]
 	>=sci-libs/nipype-1.0.0[${PYTHON_USEDEP}]
@@ -47,3 +48,10 @@ RDEPEND="
 "
 
 S="${WORKDIR}/SAMRI-${PV}"
+
+src_prepare() {
+	distutils-r1_src_prepare
+	sed -i -e "s:/usr:@GENTOO_PORTAGE_EPREFIX@/usr:g" `grep -rlI \'/usr/ samri`
+	sed -i -e "s:/usr:@GENTOO_PORTAGE_EPREFIX@/usr:g" `grep -rlI /usr/ test_scripts.sh`
+	eprefixify $(grep -rl GENTOO_PORTAGE_EPREFIX samri/* test_scripts.sh)
+}