diff --git a/native/jni/Android.mk b/native/jni/Android.mk
index 6c3c41a..ea35dab 100644
--- a/native/jni/Android.mk
+++ b/native/jni/Android.mk
@@ -46,7 +46,6 @@
     jni_common.cpp
 
 LATIN_IME_CORE_SRC_FILES := \
-    additional_proximity_chars.cpp \
     bigram_dictionary.cpp \
     char_utils.cpp \
     correction.cpp \
@@ -61,6 +60,7 @@
         dic_node_utils.cpp \
         dic_nodes_cache.cpp) \
     $(addprefix suggest/core/layout/, \
+        additional_proximity_chars.cpp \
         proximity_info.cpp \
         proximity_info_params.cpp \
         proximity_info_state.cpp \
diff --git a/native/jni/src/additional_proximity_chars.cpp b/native/jni/src/suggest/core/layout/additional_proximity_chars.cpp
similarity index 95%
rename from native/jni/src/additional_proximity_chars.cpp
rename to native/jni/src/suggest/core/layout/additional_proximity_chars.cpp
index 661c50e..34b8b37 100644
--- a/native/jni/src/additional_proximity_chars.cpp
+++ b/native/jni/src/suggest/core/layout/additional_proximity_chars.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "additional_proximity_chars.h"
+#include "suggest/core/layout/additional_proximity_chars.h"
 
 namespace latinime {
 // TODO: Stop using hardcoded additional proximity characters.
diff --git a/native/jni/src/additional_proximity_chars.h b/native/jni/src/suggest/core/layout/additional_proximity_chars.h
similarity index 100%
rename from native/jni/src/additional_proximity_chars.h
rename to native/jni/src/suggest/core/layout/additional_proximity_chars.h
diff --git a/native/jni/src/suggest/core/layout/proximity_info.cpp b/native/jni/src/suggest/core/layout/proximity_info.cpp
index d5ef2d8..995e104 100644
--- a/native/jni/src/suggest/core/layout/proximity_info.cpp
+++ b/native/jni/src/suggest/core/layout/proximity_info.cpp
@@ -21,10 +21,10 @@
 
 #define LOG_TAG "LatinIME: proximity_info.cpp"
 
-#include "additional_proximity_chars.h"
 #include "char_utils.h"
 #include "defines.h"
 #include "jni.h"
+#include "suggest/core/layout/additional_proximity_chars.h"
 #include "suggest/core/layout/geometry_utils.h"
 #include "suggest/core/layout/proximity_info_params.h"
 
diff --git a/native/jni/src/suggest/core/layout/proximity_info_utils.h b/native/jni/src/suggest/core/layout/proximity_info_utils.h
index 2204fd9..c3a275b 100644
--- a/native/jni/src/suggest/core/layout/proximity_info_utils.h
+++ b/native/jni/src/suggest/core/layout/proximity_info_utils.h
@@ -19,10 +19,10 @@
 
 #include <cmath>
 
-#include "additional_proximity_chars.h"
 #include "char_utils.h"
 #include "defines.h"
 #include "hash_map_compat.h"
+#include "suggest/core/layout/additional_proximity_chars.h"
 #include "suggest/core/layout/geometry_utils.h"
 
 namespace latinime {