diff --git a/src/nvim/CMakeLists.txt b/src/nvim/CMakeLists.txt
index 5a5ebc4415..d0f75a2b5b 100644
--- a/src/nvim/CMakeLists.txt
+++ b/src/nvim/CMakeLists.txt
@@ -425,7 +425,6 @@ endfunction()
 
 set(NO_SINGLE_CHECK_HEADERS
   cursor_shape.h
-  diff.h
   digraph.h
   ex_cmds.h
   ex_getln.h
diff --git a/src/nvim/diff.h b/src/nvim/diff.h
index f6cef1cafd..3624ce29bb 100644
--- a/src/nvim/diff.h
+++ b/src/nvim/diff.h
@@ -1,6 +1,9 @@
 #ifndef NVIM_DIFF_H
 #define NVIM_DIFF_H
 
+#include "nvim/pos.h"
+#include "nvim/ex_cmds_defs.h"
+
 #ifdef INCLUDE_GENERATED_DECLARATIONS
 # include "diff.h.generated.h"
 #endif