diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3e0bf8b53..ff2a191a4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -124,6 +124,11 @@ set_package_properties(Quotient${QUOTIENT_SUFFIX} PROPERTIES
     PURPOSE "Talk with matrix server"
 )
 
+if (NOT TARGET Olm::Olm)
+    message(FATAL_ERROR "NeoChat requires Quotient with the E2EE feature enabled")
+endif()
+
+
 find_package(cmark)
 set_package_properties(cmark PROPERTIES
     TYPE REQUIRED