diff --git a/app-crypt/mhash/metadata.xml b/app-crypt/mhash/metadata.xml
index c285081e98c2c..47f393c9d2d36 100644
--- a/app-crypt/mhash/metadata.xml
+++ b/app-crypt/mhash/metadata.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-	<!-- maintainer-needed -->
+  <!-- maintainer-needed -->
   <upstream>
     <remote-id type="sourceforge">mhash</remote-id>
   </upstream>
diff --git a/app-crypt/nwipe/metadata.xml b/app-crypt/nwipe/metadata.xml
index d39fe3938901b..c2ed1ed608a09 100644
--- a/app-crypt/nwipe/metadata.xml
+++ b/app-crypt/nwipe/metadata.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-	<!-- maintainer-needed -->
+  <!-- maintainer-needed -->
   <upstream>
     <remote-id type="sourceforge">nwipe</remote-id>
   </upstream>
diff --git a/app-crypt/tc-play/metadata.xml b/app-crypt/tc-play/metadata.xml
index aaa7ebb3f8da0..a6542c0db7a10 100644
--- a/app-crypt/tc-play/metadata.xml
+++ b/app-crypt/tc-play/metadata.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-	<!-- maintainer-needed -->
+  <!-- maintainer-needed -->
   <upstream>
     <remote-id type="github">bwalex/tc-play</remote-id>
   </upstream>
diff --git a/app-crypt/tpm-tools/metadata.xml b/app-crypt/tpm-tools/metadata.xml
index 08b87c77dba0c..c53b4aaedf5ae 100644
--- a/app-crypt/tpm-tools/metadata.xml
+++ b/app-crypt/tpm-tools/metadata.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-	<!-- maintainer-needed -->
+  <!-- maintainer-needed -->
   <use>
     <flag name="pkcs11">
       Build Token data management utilities based on OpenCryptoki's
diff --git a/dev-libs/crypto++/metadata.xml b/dev-libs/crypto++/metadata.xml
index 1a8c3ae79992b..12e017ffcb5b8 100644
--- a/dev-libs/crypto++/metadata.xml
+++ b/dev-libs/crypto++/metadata.xml
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-	<maintainer type="person">
-		<email>noloader@gmail.com</email>
-		<name>Jeffrey Walton</name>
-	</maintainer>
-	<use>
-		<flag name="asm">Support assembly hand optimized crypto functions (i.e. faster run time)</flag>
-	</use>
-	<upstream>
-		<remote-id type="github">weidai11/cryptopp</remote-id>
-	</upstream>
-	<slots>
-		<subslots>so version</subslots>
-	</slots>
+  <maintainer type="person">
+    <email>noloader@gmail.com</email>
+    <name>Jeffrey Walton</name>
+  </maintainer>
+  <use>
+    <flag name="asm">Support assembly hand optimized crypto functions (i.e. faster run time)</flag>
+  </use>
+  <upstream>
+    <remote-id type="github">weidai11/cryptopp</remote-id>
+  </upstream>
+  <slots>
+    <subslots>so version</subslots>
+  </slots>
 </pkgmetadata>
diff --git a/dev-libs/libmcrypt/metadata.xml b/dev-libs/libmcrypt/metadata.xml
index 8218d5403d95c..44f7541521002 100644
--- a/dev-libs/libmcrypt/metadata.xml
+++ b/dev-libs/libmcrypt/metadata.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-	<!-- maintainer-needed -->
+  <!-- maintainer-needed -->
   <upstream>
     <remote-id type="sourceforge">mcrypt</remote-id>
   </upstream>
diff --git a/sys-auth/pam_p11/metadata.xml b/sys-auth/pam_p11/metadata.xml
index b7236a30d2c29..aa0da53bc0533 100644
--- a/sys-auth/pam_p11/metadata.xml
+++ b/sys-auth/pam_p11/metadata.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-	<!-- maintainer-needed -->
+  <!-- maintainer-needed -->
   <upstream>
     <remote-id type="sourceforge">opensc</remote-id>
     <remote-id type="github">opensc/pam_p11</remote-id>