diff --git a/Release/src/CMakeLists.txt b/Release/src/CMakeLists.txt
index a34605bda2..24f71b316f 100644
--- a/Release/src/CMakeLists.txt
+++ b/Release/src/CMakeLists.txt
@@ -75,6 +75,7 @@ if(CPPREST_EXCLUDE_COMPRESSION)
 else()
   cpprest_find_zlib()
   target_link_libraries(cpprest PRIVATE cpprestsdk_zlib_internal)
+  target_compile_definitions(cpprest PRIVATE -DCPPREST_HTTP_COMPRESSION=1)
 endif()
 
 # PPLX component