diff --git a/src/report.c b/src/report.c
index 904fd6f14..7f0ad8dc0 100644
--- a/src/report.c
+++ b/src/report.c
@@ -1080,7 +1080,7 @@ static void report_region_schemes(struct stream *out, const region * r, faction
         }
         else if (num > 1) {
             int i;
-            char *rnames[MAX_SCHEMES];
+            const char *rnames[MAX_SCHEMES];
 
             for (i = 0; i != num; ++i) {
                 char rbuf[REPORTWIDTH];
@@ -1090,7 +1090,7 @@ static void report_region_schemes(struct stream *out, const region * r, faction
             }
             report_list(f->locale, buf, sizeof(buf), num, rnames);
             for (i = 0; i != num; ++i) {
-                free(rnames[i]);
+                free((char *)rnames[i]);
             }
         }
         if (num > 0) {