diff --git a/3rd/libunibreak/linebreak.c b/3rd/libunibreak/linebreak.c
index 5b2ce3b18..2219764ac 100644
--- a/3rd/libunibreak/linebreak.c
+++ b/3rd/libunibreak/linebreak.c
@@ -84,7 +84,7 @@ enum BreakAction
  * adjusted after special processing as per LB8a of Revision 41) and CB
  * (manually added as per LB20).
  */
-static enum BreakAction baTable[LBP_CB][LBP_CB] = {
+static const enum BreakAction baTable[LBP_CB][LBP_CB] = {
     {   /* OP */
         PRH_BRK, PRH_BRK, PRH_BRK, PRH_BRK, PRH_BRK, PRH_BRK, PRH_BRK,
         PRH_BRK, PRH_BRK, PRH_BRK, PRH_BRK, PRH_BRK, PRH_BRK, PRH_BRK,
diff --git a/src/tkc/color_parser.c b/src/tkc/color_parser.c
index b94a88313..553c91c84 100644
--- a/src/tkc/color_parser.c
+++ b/src/tkc/color_parser.c
@@ -8,7 +8,7 @@ typedef struct _color_map_t {
   const char* value;
 } color_map_t;
 
-static color_map_t colors_map[] = {{"aliceblue", "#f0f8ff"},
+static color_map_t const colors_map[] = {{"aliceblue", "#f0f8ff"},
                                    {"antiquewhite", "#faebd7"},
                                    {"aqua", "#00ffff"},
                                    {"aquamarine", "#7fffd4"},