diff --git a/build/cmake/init.cmake b/build/cmake/init.cmake
index 6ca0f32985..d9b78ba412 100644
--- a/build/cmake/init.cmake
+++ b/build/cmake/init.cmake
@@ -308,16 +308,30 @@ if(wxUSE_LIBLZMA)
     endif()
 endif()
 
-if(wxUSE_WEBREQUEST_CURL)
-    find_package(CURL)
-    if(NOT CURL_FOUND)
-        message(WARNING "CURL not found, wxWebSessionBackendCURL won't be available")
-        wx_option_force_value(wxUSE_WEBREQUEST_CURL OFF)
+if (wxUSE_WEBREQUEST)
+    if(wxUSE_WEBREQUEST_CURL)
+        find_package(CURL)
+        if(NOT CURL_FOUND)
+            message(WARNING "CURL not found, wxWebSessionBackendCURL won't be available")
+            wx_option_force_value(wxUSE_WEBREQUEST_CURL OFF)
+        endif()
+    endif()
+
+    if(wxUSE_WEBREQUEST_WINHTTP)
+        check_c_source_compiles("#include <windows.h>
+                                 #include <winhttp.h>
+                                 int main(){return 0;}"
+                                HAVE_WINHTTP_H)
+        if(NOT HAVE_WINHTTP_H)
+            message(WARNING "winhttp.h not found, wxWebSessionBackendWinHTTP won't be available")
+            wx_option_force_value(wxUSE_WEBREQUEST_WINHTTP OFF)
+        endif()
+    endif()
+
+    if (NOT(wxUSE_WEBREQUEST_WINHTTP OR wxUSE_WEBREQUEST_URLSESSION OR wxUSE_WEBREQUEST_CURL))
+        message(WARNING "wxUSE_WEBREQUEST requires at least one backend, it won't be available")
+        wx_option_force_value(wxUSE_WEBREQUEST OFF)
     endif()
-endif()
-if (wxUSE_WEBREQUEST AND NOT (wxUSE_WEBREQUEST_WINHTTP OR wxUSE_WEBREQUEST_URLSESSION OR wxUSE_WEBREQUEST_CURL))
-    message(WARNING "wxUSE_WEBREQUEST requires at least one backend, it won't be available")
-    wx_option_force_value(wxUSE_WEBREQUEST OFF)
 endif()
 
 if(UNIX)