diff --git a/src/string.c b/src/string.c
index 8ec9b7a..0931764 100644
--- a/src/string.c
+++ b/src/string.c
@@ -149,7 +149,7 @@ cfw_string_c(CFWString *str)
 }
 
 size_t
-cfw_string_len(CFWString *string)
+cfw_string_length(CFWString *string)
 {
 	return string->len;
 }
diff --git a/src/string.h b/src/string.h
index c194324..f00bfb8 100644
--- a/src/string.h
+++ b/src/string.h
@@ -34,7 +34,7 @@ typedef struct CFWString CFWString;
 extern CFWClass *cfw_string;
 extern char* cfw_strdup(const char*);
 extern const char* cfw_string_c(CFWString*);
-extern size_t cfw_string_len(CFWString*);
+extern size_t cfw_string_length(CFWString*);
 extern bool cfw_string_set(CFWString*, const char*);
 extern bool cfw_string_append(CFWString*, CFWString*);
 extern size_t cfw_string_find(CFWString*, CFWString*, cfw_range_t);