diff --git a/_bej/dep/aux_.md b/_bej/dep/aux_.md
index f1130aa580..f166189e86 100644
--- a/_bej/dep/aux_.md
+++ b/_bej/dep/aux_.md
@@ -2,6 +2,9 @@
 layout: relation
 title: 'aux'
 shortdef: 'auxiliary'
+# The filename "aux" is not allowed on Windows, so we redirect instead
+# (see https://github.com/UniversalDependencies/docs/issues/20)
+redirect_from: "bej/dep/aux.html"
 udver: '2'
 ---
 
diff --git a/_de/dep/aux_.md b/_de/dep/aux_.md
index ff9690381d..16e2cf18dc 100644
--- a/_de/dep/aux_.md
+++ b/_de/dep/aux_.md
@@ -3,6 +3,9 @@ udver: '2'
 layout: relation
 title: 'aux'
 shortdef: 'auxiliary'
+# The filename "aux" is not allowed on Windows, so we redirect instead
+# (see https://github.com/UniversalDependencies/docs/issues/20)
+redirect_from: "de/dep/aux.html"
 ---
 
 An `aux` (auxiliary) of a clause is a function word associated (a verb) with a verbal predicate that expresses categories such as tense, mood, aspect, voice or evidentiality. In German this includes verbs sein and haben when they indicate past tense, verb werden when it indicates future tense or a poosibility, as well as modal verbs. 
diff --git a/_gsw/dep/aux_.md b/_gsw/dep/aux_.md
index 6355303e44..175e347ce3 100644
--- a/_gsw/dep/aux_.md
+++ b/_gsw/dep/aux_.md
@@ -3,6 +3,9 @@ udver: '2'
 layout: relation
 title: 'aux'
 shortdef: 'auxiliary'
+# The filename "aux" is not allowed on Windows, so we redirect instead
+# (see https://github.com/UniversalDependencies/docs/issues/20)
+redirect_from: "gsw/dep/aux.html"
 ---
 
 An `aux` (auxiliary) of a clause is a function word associated (a verb) with a verbal predicate that expresses categories such as tense, mood, aspect, voice or evidentiality. In German this includes verbs sein and haben when they indicate past tense, verb werden when it indicates future tense or a poosibility, as well as modal verbs. 
diff --git a/_gub/dep/aux_.md b/_gub/dep/aux_.md
index b71aa9b78c..8ad9e3c6bf 100644
--- a/_gub/dep/aux_.md
+++ b/_gub/dep/aux_.md
@@ -2,6 +2,9 @@
 layout: relation
 title: 'aux'
 shortdef: 'auxiliary'
+# The filename "aux" is not allowed on Windows, so we redirect instead
+# (see https://github.com/UniversalDependencies/docs/issues/20)
+redirect_from: "gub/dep/aux.html"
 udver: '2'
 ---
 
diff --git a/_id/dep/aux_.md b/_id/dep/aux_.md
index 332d95b000..e6cb16e85d 100644
--- a/_id/dep/aux_.md
+++ b/_id/dep/aux_.md
@@ -2,6 +2,9 @@
 layout: relation
 title: 'aux'
 shortdef: 'auxiliary'
+# The filename "aux" is not allowed on Windows, so we redirect instead
+# (see https://github.com/UniversalDependencies/docs/issues/20)
+redirect_from: "id/dep/aux.html"
 udver: '2'
 ---
 
diff --git a/_ja/dep/aux_.md b/_ja/dep/aux_.md
index fcd4611d96..11384b5fb0 100644
--- a/_ja/dep/aux_.md
+++ b/_ja/dep/aux_.md
@@ -4,7 +4,7 @@ title: 'aux'
 shortdef: 'auxiliary'
 # The filename "aux" is not allowed on Windows, so we redirect instead
 # (see https://github.com/UniversalDependencies/docs/issues/20)
-redirect_from: "/ja/dep/_aux"
+redirect_from: "ja/dep/aux.html"
 udver: '2'
 ---
 
diff --git a/_ka/dep/aux_.md b/_ka/dep/aux_.md
index 76955ad991..17205f6cd7 100644
--- a/_ka/dep/aux_.md
+++ b/_ka/dep/aux_.md
@@ -3,6 +3,9 @@ udver: '2'
 layout: relation
 title: 'aux'
 shortdef: 'auxiliary'
+# The filename "aux" is not allowed on Windows, so we redirect instead
+# (see https://github.com/UniversalDependencies/docs/issues/20)
+redirect_from: "ka/dep/aux.html"
 ---
 
 An `aux` (auxiliary) of a clause is a function word associated (a verb) with a verbal predicate. In Georgian such kinds of constructions are generally discussed as part of composite predicates. E.g. 
diff --git a/_oge/dep/aux_.md b/_oge/dep/aux_.md
index 18ec300b56..c5598c7a47 100644
--- a/_oge/dep/aux_.md
+++ b/_oge/dep/aux_.md
@@ -3,6 +3,9 @@ udver: '2'
 layout: relation
 title: 'aux'
 shortdef: 'auxiliary'
+# The filename "aux" is not allowed on Windows, so we redirect instead
+# (see https://github.com/UniversalDependencies/docs/issues/20)
+redirect_from: "oge/dep/aux.html"
 ---
 
 An `aux` (auxiliary) of a clause is a function word associated (a verb) with a verbal predicate. In Georgian such kinds of constructions are generally discussed as part of composite predicates. E.g. 
diff --git a/_qpm/dep/aux_.md b/_qpm/dep/aux_.md
index cbd0e38917..c8a0cd6f38 100644
--- a/_qpm/dep/aux_.md
+++ b/_qpm/dep/aux_.md
@@ -3,6 +3,9 @@ udver: '2'
 layout: relation
 title: 'aux'
 shortdef: 'auxiliary'
+# The filename "aux" is not allowed on Windows, so we redirect instead
+# (see https://github.com/UniversalDependencies/docs/issues/20)
+redirect_from: "qpm/dep/aux.html"
 ---
 
 
diff --git a/_sl/dep/aux_.md b/_sl/dep/aux_.md
index 79d9fccacc..b698074e55 100644
--- a/_sl/dep/aux_.md
+++ b/_sl/dep/aux_.md
@@ -3,6 +3,9 @@ layout: relation
 title: 'aux'
 shortdef: 'auxiliary'
 udver: '2'
+# The filename "aux" is not allowed on Windows, so we redirect instead
+# (see https://github.com/UniversalDependencies/docs/issues/20)
+redirect_from: "sl/dep/aux.html"
 ---
 
 An auxiliary of a clause is a function word associated with a verbal predicate that expresses categories such as tense, mood, aspect, voice or evidentiality. In contrast to the languages and grammatical theories that also categorize other function words as auxiliaries, the `aux` relation in Slovene is used exclusively for the auxiliary verb **biti** (_to be_), e.g. to form non-present tense. 
diff --git a/_ssp/dep/aux_.md b/_ssp/dep/aux_.md
index c6541e42d0..682cb59c4d 100644
--- a/_ssp/dep/aux_.md
+++ b/_ssp/dep/aux_.md
@@ -4,6 +4,7 @@ title: 'aux'
 shortdef: 'auxiliary'
 # The filename "aux" is not allowed on Windows, so we redirect instead
 # (see https://github.com/UniversalDependencies/docs/issues/20)
+redirect_from: "ssp/dep/aux.html"
 udver: '2'
 ---
 
diff --git a/_urj/dep/aux_.md b/_urj/dep/aux_.md
index a74fe6c2f0..34cd4f2b7d 100644
--- a/_urj/dep/aux_.md
+++ b/_urj/dep/aux_.md
@@ -4,7 +4,7 @@ title: 'aux'
 shortdef : 'auxiliary'
 # The filename "aux" is not allowed on Windows, so we redirect instead
 # (see https://github.com/UniversalDependencies/docs/issues/20)
-redirect_from: "fi/dep/aux.html"
+redirect_from: "urj/dep/aux.html"
 udver: '2'
 ---