diff --git a/src/dc_array.rs b/deltachat-ffi/src/dc_array.rs
similarity index 100%
rename from src/dc_array.rs
rename to deltachat-ffi/src/dc_array.rs
diff --git a/deltachat-ffi/src/lib.rs b/deltachat-ffi/src/lib.rs
index 8f6a6d484..a87e839ea 100644
--- a/deltachat-ffi/src/lib.rs
+++ b/deltachat-ffi/src/lib.rs
@@ -29,6 +29,8 @@ use deltachat::message::MsgId;
 use deltachat::stock::StockMessage;
 use deltachat::*;
 
+mod dc_array;
+
 mod string;
 use self::string::*;
 
diff --git a/src/lib.rs b/src/lib.rs
index 203a52c18..dd9d9833d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -73,7 +73,6 @@ mod token;
 mod wrapmime;
 mod dehtml;
 
-pub mod dc_array;
 pub mod dc_receive_imf;
 mod dc_simplify;
 pub mod dc_tools;