diff --git a/lib/fcd/CMakeLists.txt b/lib/fcd/CMakeLists.txt
index 5d7d0c9..c89fc60 100644
--- a/lib/fcd/CMakeLists.txt
+++ b/lib/fcd/CMakeLists.txt
@@ -21,7 +21,7 @@
 # This file included, use CMake directory variables
 ########################################################################
 
-include_directories(APPEND ${CMAKE_CURRENT_SOURCE_DIR})
+include_directories(APPEND ${CMAKE_CURRENT_SOURCE_DIR} ${GNURADIO_FCD_INCLUDE_DIRS})
 
 set(fcd_srcs
     ${CMAKE_CURRENT_SOURCE_DIR}/fcd_source.cc
diff --git a/lib/osmosdr/CMakeLists.txt b/lib/osmosdr/CMakeLists.txt
index 50275a1..a5c89cd 100644
--- a/lib/osmosdr/CMakeLists.txt
+++ b/lib/osmosdr/CMakeLists.txt
@@ -21,7 +21,7 @@
 # This file included, use CMake directory variables
 ########################################################################
 
-include_directories(APPEND ${CMAKE_CURRENT_SOURCE_DIR})
+include_directories(APPEND ${CMAKE_CURRENT_SOURCE_DIR} ${GNURADIO_AUDIO_INCLUDE_DIRS})
 
 set(osmosdr_srcs
     ${CMAKE_CURRENT_SOURCE_DIR}/osmosdr_control.cc
diff --git a/lib/uhd/CMakeLists.txt b/lib/uhd/CMakeLists.txt
index ab6d24b..e5d12a0 100644
--- a/lib/uhd/CMakeLists.txt
+++ b/lib/uhd/CMakeLists.txt
@@ -21,7 +21,7 @@
 # This file included, use CMake directory variables
 ########################################################################
 
-include_directories(APPEND ${CMAKE_CURRENT_SOURCE_DIR})
+include_directories(APPEND ${CMAKE_CURRENT_SOURCE_DIR} ${GNURADIO_UHD_INCLUDE_DIRS})
 
 set(uhd_srcs
     ${CMAKE_CURRENT_SOURCE_DIR}/uhd_source_c.cc