diff --git a/core/src/main/scala/mdr/pdb/api/domain.scala b/core/src/main/scala/mdr/pdb/api/domain.scala
new file mode 100644
index 0000000..bfed233
--- /dev/null
+++ b/core/src/main/scala/mdr/pdb/api/domain.scala
@@ -0,0 +1,17 @@
+package mdr.pdb
+package api
+
+import java.time.LocalDate
+import java.time.Instant
+
+sealed trait Command
+
+type DocumentRef = String
+
+case class AutorizujDukaz(
+    osoba: OsobniCislo,
+    parametr: Parameter.Id,
+    kriterium: ParameterCriteria.Id,
+    dukaz: List[DocumentRef],
+    platiDo: Option[LocalDate]
+) extends Command

diff --git a/core/src/main/scala/mdr/pdb/api/domain.scala b/core/src/main/scala/mdr/pdb/api/domain.scala
new file mode 100644
index 0000000..bfed233
--- /dev/null
+++ b/core/src/main/scala/mdr/pdb/api/domain.scala
@@ -0,0 +1,17 @@
+package mdr.pdb
+package api
+
+import java.time.LocalDate
+import java.time.Instant
+
+sealed trait Command
+
+type DocumentRef = String
+
+case class AutorizujDukaz(
+    osoba: OsobniCislo,
+    parametr: Parameter.Id,
+    kriterium: ParameterCriteria.Id,
+    dukaz: List[DocumentRef],
+    platiDo: Option[LocalDate]
+) extends Command
diff --git a/core/src/main/scala/mdr/pdb/frontend/domain.scala b/core/src/main/scala/mdr/pdb/frontend/domain.scala
deleted file mode 100644
index 9a12381..0000000
--- a/core/src/main/scala/mdr/pdb/frontend/domain.scala
+++ /dev/null
@@ -1,17 +0,0 @@
-package mdr.pdb
-package frontend
-
-import java.time.LocalDate
-import java.time.Instant
-
-sealed trait Command
-
-type DocumentRef = String
-
-case class AutorizujDukaz(
-    osoba: OsobniCislo,
-    parametr: Parameter.Id,
-    kriterium: ParameterCriteria.Id,
-    dukaz: List[DocumentRef],
-    platiDo: Option[LocalDate]
-) extends Command