diff --git a/CMakeLists.txt b/CMakeLists.txt
index 929fa99..73a510c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -70,6 +70,10 @@
 set(GR_RUNTIME_DIR      bin)
 set(GR_LIBRARY_DIR      lib${LIB_SUFFIX})
 set(GR_INCLUDE_DIR      include/gsm)
+set(GR_INCLUDE_DIR      include/gsm/misc_utils)
+set(GR_INCLUDE_DIR      include/gsm/receiver)
+set(GR_INCLUDE_DIR      include/gsm/demapping)
+set(GR_INCLUDE_DIR      include/gsm/decoding)
 set(GR_DATA_DIR         share)
 set(GR_PKG_DATA_DIR     ${GR_DATA_DIR}/${CMAKE_PROJECT_NAME})
 set(GR_DOC_DIR          ${GR_DATA_DIR}/doc)