diff --git a/gdbstub/internals.h b/gdbstub/internals.h
index 34121dc61a..bf5a5c6302 100644
--- a/gdbstub/internals.h
+++ b/gdbstub/internals.h
@@ -107,7 +107,6 @@ static inline int tohex(int v)
 
 void gdb_put_strbuf(void);
 int gdb_put_packet_binary(const char *buf, int len, bool dump);
-void gdb_hextomem(GByteArray *mem, const char *buf, int len);
 void gdb_memtohex(GString *buf, const uint8_t *mem, int len);
 void gdb_memtox(GString *buf, const char *mem, int len);
 void gdb_read_byte(uint8_t ch);
diff --git a/include/gdbstub/commands.h b/include/gdbstub/commands.h
index 306dfdef97..e51f276b40 100644
--- a/include/gdbstub/commands.h
+++ b/include/gdbstub/commands.h
@@ -91,4 +91,10 @@ void gdb_extend_set_table(GdbCmdParseEntry *table, int size);
  */
 void gdb_extend_qsupported_features(char *qsupported_features);
 
+/**
+ * Convert a hex string to bytes. Conversion is done per byte, so 2 hex digits
+ * are converted to 1 byte. Invalid hex digits are treated as 0 digits.
+ */
+void gdb_hextomem(GByteArray *mem, const char *buf, int len);
+
 #endif /* GDBSTUB_COMMANDS_H */