diff --git a/CHANGELOG.md b/CHANGELOG.md
index bde10a435e..db6c4b048b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -84,6 +84,7 @@ Bugfixes:
 * Fixed `{#keys}` and `{#title}` in module format strings not honoring the `brightColor` display option. (Format)
 * Fixed `paddingTop` and `paddingLeft` being ignored by the `kitty-icat` image logo type. (Logo)
 * Fixed issues when running on big-endian platforms.
+* Fixed building on FreeBSD 16.0-CURRENT, where `<string.h>` defines `memrchr` as a qualifier-preserving function-like macro. (General, FreeBSD)
 * Some internal cleanups and optimizations.
 
 Logos:
diff --git a/src/common/memrchr.h b/src/common/memrchr.h
index 6905a33176..9d4ef24aa0 100644
--- a/src/common/memrchr.h
+++ b/src/common/memrchr.h
@@ -8,7 +8,9 @@ extern "C" {
 
 // `memrchr` is a GNU extension and may not be declared by system headers even when the symbol exists.
 // Declare it unconditionally; the build system provides a fallback implementation when missing.
+#ifndef memrchr
 void* memrchr(const void* s, int c, size_t n);
+#endif
 
 #ifdef __cplusplus
 }