diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9e710f5..da90b43 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -257,13 +257,8 @@ else()
   set(GPSD_LIBRARIES "")
 endif()
 
-find_package(hamlib)
-if(HAMLIB_FOUND)
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DUSE_HAMLIB")
-else()
-  set(HAMLIB_INCLUDE_DIRS "")
-  set(HAMLIB_LIBRARIES "")
-endif()
+set(HAMLIB_INCLUDE_DIRS "")
+set(HAMLIB_LIBRARIES "")
 
 if(LINUX)
   find_package(ALSA REQUIRED)