diff --git a/src/algorithms/signal_source/gnuradio_blocks/CMakeLists.txt b/src/algorithms/signal_source/gnuradio_blocks/CMakeLists.txt
index 185768fd2..a71dde216 100644
--- a/src/algorithms/signal_source/gnuradio_blocks/CMakeLists.txt
+++ b/src/algorithms/signal_source/gnuradio_blocks/CMakeLists.txt
@@ -107,7 +107,7 @@ endif()
 if(USE_BOOST_ASIO_IO_CONTEXT)
     target_compile_definitions(signal_source_gr_blocks
         PUBLIC
-            -DUSE_BOOST_ASIO_IO_CONTEXT
+            -DUSE_BOOST_ASIO_IO_CONTEXT=1
     )
 endif()
 
diff --git a/src/algorithms/tracking/libs/CMakeLists.txt b/src/algorithms/tracking/libs/CMakeLists.txt
index 2f9128a38..246ce4d42 100644
--- a/src/algorithms/tracking/libs/CMakeLists.txt
+++ b/src/algorithms/tracking/libs/CMakeLists.txt
@@ -114,7 +114,7 @@ endif()
 if(USE_BOOST_ASIO_IO_CONTEXT)
     target_compile_definitions(tracking_libs
         PUBLIC
-            -DUSE_BOOST_ASIO_IO_CONTEXT
+            -DUSE_BOOST_ASIO_IO_CONTEXT=1
     )
 endif()
 
diff --git a/src/core/receiver/CMakeLists.txt b/src/core/receiver/CMakeLists.txt
index 594d771b4..35384ff95 100644
--- a/src/core/receiver/CMakeLists.txt
+++ b/src/core/receiver/CMakeLists.txt
@@ -129,7 +129,7 @@ endif()
 if(USE_BOOST_ASIO_IO_CONTEXT)
     target_compile_definitions(core_receiver
         PRIVATE
-            -DUSE_BOOST_ASIO_IO_CONTEXT
+            -DUSE_BOOST_ASIO_IO_CONTEXT=1
     )
 endif()