diff --git a/src/pymod/db/db.pro b/src/pymod/db/db.pro
index 345123a4b..e40682d5c 100644
--- a/src/pymod/db/db.pro
+++ b/src/pymod/db/db.pro
@@ -1,5 +1,6 @@
 
-TARGET = db
+TARGET = dbcore
+REALMODULE = db
 
 include($$PWD/../pymod.pri)
 
diff --git a/src/pymod/distutils_src/klayout/rdb.py b/src/pymod/distutils_src/klayout/rdb/__init__.py
similarity index 100%
rename from src/pymod/distutils_src/klayout/rdb.py
rename to src/pymod/distutils_src/klayout/rdb/__init__.py
diff --git a/src/pymod/distutils_src/klayout/tl.py b/src/pymod/distutils_src/klayout/tl/__init__.py
similarity index 100%
rename from src/pymod/distutils_src/klayout/tl.py
rename to src/pymod/distutils_src/klayout/tl/__init__.py
diff --git a/src/pymod/pymod.pri b/src/pymod/pymod.pri
index 4715b50ce..f73ef6473 100644
--- a/src/pymod/pymod.pri
+++ b/src/pymod/pymod.pri
@@ -48,3 +48,25 @@ msvc {
   lib_target.extra = $(INSTALL_PROGRAM) $$DESTDIR_PYMOD/$${TARGET}$${PYTHONEXTSUFFIX} $(INSTALLROOT)$$PREFIX/pymod/klayout
 }
 INSTALLS = lib_target
+
+!equals(REALMODULE, "") {
+
+  msvc {
+    QMAKE_POST_LINK += && $(MKDIR) $$shell_path($$DESTDIR_PYMOD/$$REALMODULE) && $(COPY) $$shell_path($$PWD/distutils_src/klayout/$$REALMODULE/*) $$shell_path($$DESTDIR_PYMOD/$$REALMODULE)
+  } else {
+    QMAKE_POST_LINK += && $(MKDIR) $$DESTDIR_PYMOD/$$REALMODULE && $(COPY) $$PWD/distutils_src/klayout/$$REALMODULE/* $$DESTDIR_PYMOD/$$REALMODULE
+  }
+
+  # INSTALLS needs to be inside a lib or app templates.
+  modsrc_target.path = $$PREFIX/pymod/klayout/$$REALMODULE
+  # This would be nice:
+  #   init_target.files += $$DESTDIR_PYMOD/$$REALMODULE/*
+  # but some Qt versions need this explicitly:
+  msvc {
+    modsrc_target.extra = $(INSTALL_PROGRAM) $$shell_path($$DESTDIR_PYMOD/$$REALMODULE/*) $$shell_path($(INSTALLROOT)$$PREFIX/pymod/klayout/$$REALMODULE)
+  } else {
+    modsrc_target.extra = $(INSTALL_PROGRAM) $$DESTDIR_PYMOD/* $(INSTALLROOT)$$PREFIX/pymod/klayout/$$REALMODULE
+  }
+  INSTALLS += modsrc_target
+
+}
diff --git a/src/pymod/rdb/rdb.pro b/src/pymod/rdb/rdb.pro
index 5a54aa383..f54b94059 100644
--- a/src/pymod/rdb/rdb.pro
+++ b/src/pymod/rdb/rdb.pro
@@ -1,5 +1,6 @@
 
-TARGET = rdb
+TARGET = rdbcore
+REALMODULE = rdb
 
 include($$PWD/../pymod.pri)
 
diff --git a/src/pymod/tl/tl.pro b/src/pymod/tl/tl.pro
index b4f161393..b3aa2e0c9 100644
--- a/src/pymod/tl/tl.pro
+++ b/src/pymod/tl/tl.pro
@@ -1,5 +1,6 @@
 
-TARGET = tl
+TARGET = tlcore
+REALMODULE = tl
 
 include($$PWD/../pymod.pri)
 
@@ -41,3 +42,4 @@ msvc {
   init_target.extra = $(INSTALL_PROGRAM) $$DESTDIR_PYMOD/__init__.py $(INSTALLROOT)$$PREFIX/pymod/klayout
 }
 INSTALLS += init_target
+