diff --git a/lib/domains/pl/bydgoszcz/amb.txt b/lib/domains/pl/bydgoszcz/amb.txt
deleted file mode 100644
index 95e1da61a4..0000000000
--- a/lib/domains/pl/bydgoszcz/amb.txt
+++ /dev/null
@@ -1 +0,0 @@
-Medical Academy “Ludwik Rydygier” in Bydgoszcz
diff --git a/lib/domains/pl/bydgoszcz/wsp.txt b/lib/domains/pl/bydgoszcz/wsp.txt
deleted file mode 100644
index f68a1ddc07..0000000000
--- a/lib/domains/pl/bydgoszcz/wsp.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Pedagogical University of Bydgoszcz
-Pedagogical University of Bydgoszcz
diff --git a/lib/domains/pl/czest/wsp.txt b/lib/domains/pl/czest/wsp.txt
deleted file mode 100644
index db79021bd7..0000000000
--- a/lib/domains/pl/czest/wsp.txt
+++ /dev/null
@@ -1 +0,0 @@
-Pedagogical University of Czestochowa
diff --git a/lib/domains/pl/gallus.txt b/lib/domains/pl/gallus.txt
deleted file mode 100644
index 66c3c58f65..0000000000
--- a/lib/domains/pl/gallus.txt
+++ /dev/null
@@ -1 +0,0 @@
-Silesian School of Economics and Languages
diff --git a/lib/domains/pl/slupsk/wsp.txt b/lib/domains/pl/slupsk/wsp.txt
deleted file mode 100644
index 4981e19a39..0000000000
--- a/lib/domains/pl/slupsk/wsp.txt
+++ /dev/null
@@ -1 +0,0 @@
-Pedagogical University of Slupsk
diff --git a/lib/domains/pl/tarnow.txt b/lib/domains/pl/tarnow.txt
deleted file mode 100644
index 2391f5833d..0000000000
--- a/lib/domains/pl/tarnow.txt
+++ /dev/null
@@ -1 +0,0 @@
-Higher School o Business in Tarnow