diff --git a/src/core/core-string.h b/src/core/core-string.h
index 6408114f2..d89cf5f6d 100644
--- a/src/core/core-string.h
+++ b/src/core/core-string.h
@@ -147,7 +147,7 @@ extern int string_levenshtein (const char *string1, const char *string2,
 extern char *string_replace_with_callback (const char *string,
                                            const char *prefix,
                                            const char *suffix,
-                                           int allow_escpae,
+                                           int allow_escape,
                                            const char **list_prefix_no_replace,
                                            char *(*callback)(void *data,
                                                              const char *prefix,