diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## [0.1.0.3] – December 3, 2025
+
+- Fix C compilation issue related to `wcwidth` usage
+
 ## [0.1.0.2] - April 10, 2025
 
 - Support base-4.21
diff --git a/cbits/termbox.c b/cbits/termbox.c
--- a/cbits/termbox.c
+++ b/cbits/termbox.c
@@ -1,3 +1,5 @@
+#define _XOPEN_SOURCE 600
+
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
diff --git a/termbox-bindings-c.cabal b/termbox-bindings-c.cabal
--- a/termbox-bindings-c.cabal
+++ b/termbox-bindings-c.cabal
@@ -22,7 +22,7 @@
 name: termbox-bindings-c
 synopsis: termbox bindings
 tested-with: GHC == 9.8.4, GHC == 9.10.1, GHC == 9.12.2
-version: 0.1.0.2
+version: 0.1.0.3
 
 extra-source-files:
   CHANGELOG.md