diff --git a/.gitignore b/.gitignore
index 469ed74b704..d9617dfa3b7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -57,6 +57,7 @@ debian/bareos-filedaemon-python-plugin.install
 debian/bareos-filedaemon-python-plugins-common.install
 debian/bareos-filedaemon-python2-plugin.install
 debian/bareos-filedaemon-python3-plugin.install
+debian/bareos-filedaemon-postgresql-python-plugin.install
 debian/bareos-filedaemon.bareos-fd.init
 debian/bareos-filedaemon.install
 debian/bareos-filedaemon.postinst
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ff86da6ef6..ab287b4ae64 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -46,6 +46,7 @@ and since Bareos version 20 this project adheres to [Semantic Versioning](https:
 - storage daemon: class Device: rename dev_name to archive_device_string (as the value stored here is the value of the "Archive Device" directive) [PR #744]
 - Enable c++17 support [PR #741]
 - webui: Localization updated [PR #776]
+- running cmake for the core-directory only is now forbidden [PR #767]
 
 ### Deprecated
 
diff --git a/core/CMakeLists.txt b/core/CMakeLists.txt
index 97523c51dea..64fe4436385 100644
--- a/core/CMakeLists.txt
+++ b/core/CMakeLists.txt
@@ -21,6 +21,13 @@ message("Entering ${CMAKE_CURRENT_SOURCE_DIR}")
 cmake_minimum_required(VERSION 3.12)
 project(bareos C CXX)
 
+if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+  message(
+    FATAL_ERROR
+      "Building from bareos/core/ is not supported anymore. Use bareos/ instead"
+  )
+endif()
+
 if(POLICY CMP0054)
   cmake_policy(SET CMP0054 NEW)
 endif(POLICY CMP0054)
diff --git a/core/cmake/BareosConfigureFile.cmake b/core/cmake/BareosConfigureFile.cmake
index 39766f1b4fb..258f8cb0dcd 100644
--- a/core/cmake/BareosConfigureFile.cmake
+++ b/core/cmake/BareosConfigureFile.cmake
@@ -1,6 +1,6 @@
 #   BAREOS® - Backup Archiving REcovery Open Sourced
 #
-#   Copyright (C) 2017-2020 Bareos GmbH & Co. KG
+#   Copyright (C) 2017-2021 Bareos GmbH & Co. KG
 #
 #   This program is Free Software; you can redistribute it and/or
 #   modify it under the terms of version three of the GNU Affero General Public
@@ -21,16 +21,13 @@
 # configure file all *.in files
 #
 
-# if we're not the toplevel project, then we want to glob in core and debian
-# subdirectories only
-get_directory_property(have_parent PARENT_DIRECTORY)
-if(have_parent)
-  file(GLOB_RECURSE IN_FILES "${CMAKE_SOURCE_DIR}/core/*.in"
-       "${CMAKE_SOURCE_DIR}/debian/*.in"
-  )
-else()
-  file(GLOB_RECURSE IN_FILES "${CMAKE_CURRENT_SOURCE_DIR}/*.in")
-endif()
+file(
+  GLOB_RECURSE IN_FILES
+  "${CMAKE_SOURCE_DIR}/debian/*.in"
+  "${CMAKE_SOURCE_DIR}/core/src/*.in"
+  "${CMAKE_SOURCE_DIR}/core/scripts/*.in"
+  "${CMAKE_SOURCE_DIR}/core/platforms/*.in"
+)
 
 foreach(in_file ${IN_FILES})
   string(REGEX REPLACE ".in\$" "" file ${in_file})