diff --git a/CMakeLists.txt b/CMakeLists.txt
index 12acb35a..f5b7c86c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -178,6 +178,8 @@ set(MATRIX_EVENTS
     src/events/messages/Video.cc
 )
 
+include_directories(${LMDB_INCLUDE_DIR})
+
 include_directories(include)
 include_directories(include/ui)
 include_directories(include/events)