diff --git a/contrib/10.partcont/CMakeLists.txt b/contrib/10.partcont/CMakeLists.txt
new file mode 100644
index 00000000..65f16fb2
--- /dev/null
+++ b/contrib/10.partcont/CMakeLists.txt
@@ -0,0 +1,2 @@
+file(GLOB PARTCONT_FILES ${PROJECT_SOURCE_DIR}/contrib/10.partcont/piclib/*.scm)
+list(APPEND PICLIB_CONTRIB_LIBS ${PARTCONT_FILES})
diff --git a/contrib/partcont/piclib/partcont.scm b/contrib/10.partcont/piclib/partcont.scm
similarity index 100%
rename from contrib/partcont/piclib/partcont.scm
rename to contrib/10.partcont/piclib/partcont.scm
diff --git a/contrib/regexp/CMakeLists.txt b/contrib/10.regexp/CMakeLists.txt
similarity index 81%
rename from contrib/regexp/CMakeLists.txt
rename to contrib/10.regexp/CMakeLists.txt
index 0e28d430..f71ccfc7 100644
--- a/contrib/regexp/CMakeLists.txt
+++ b/contrib/10.regexp/CMakeLists.txt
@@ -5,7 +5,7 @@ if (REGEX_FOUND)
   add_definitions(${REGEX_DEFINITIONS})
   include_directories(${REGEX_INCLUDE_DIR})
 
-  file(GLOB PICRIN_REGEX_SOURCES ${PROJECT_SOURCE_DIR}/contrib/regexp/src/*.c)
+  file(GLOB PICRIN_REGEX_SOURCES ${PROJECT_SOURCE_DIR}/contrib/10.regexp/src/*.c)
 
   list(APPEND PICRIN_CONTRIB_INITS "void pic_init_regexp(pic_state *)\; pic_init_regexp(pic)\;")
   list(APPEND PICRIN_CONTRIB_LIBRARIES ${REGEX_LIBRARIES})
diff --git a/contrib/regexp/src/regexp.c b/contrib/10.regexp/src/regexp.c
similarity index 100%
rename from contrib/regexp/src/regexp.c
rename to contrib/10.regexp/src/regexp.c
diff --git a/contrib/partcont/CMakeLists.txt b/contrib/partcont/CMakeLists.txt
deleted file mode 100644
index c1ad29ad..00000000
--- a/contrib/partcont/CMakeLists.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-file(GLOB PARTCONT_FILES ${PROJECT_SOURCE_DIR}/contrib/partcont/piclib/*.scm)
-list(APPEND PICLIB_CONTRIB_LIBS ${PARTCONT_FILES})