diff --git a/content/handlers/javascript/duktape/duktape.c b/content/handlers/javascript/duktape/duktape.c
index 3c14af872..d6a4e3130 100644
--- a/content/handlers/javascript/duktape/duktape.c
+++ b/content/handlers/javascript/duktape/duktape.c
@@ -2919,8 +2919,8 @@ DUK_INTERNAL_DECL void duk_byteswap_bytes(duk_uint8_t *p, duk_small_uint_t len);
 	} while (0)
 #endif  /* DUK_USE_ALLOW_UNDEFINED_BEHAVIOR */
 
-DUK_INTERNAL_DECL duk_small_int_t duk_memcmp(const void *s1, const void *s2, duk_size_t len);
-DUK_INTERNAL_DECL duk_small_int_t duk_memcmp_unsafe(const void *s1, const void *s2, duk_size_t len);
+DUK_INTERNAL_DECL DUK_INLINE duk_small_int_t duk_memcmp(const void *s1, const void *s2, duk_size_t len);
+DUK_INTERNAL_DECL DUK_INLINE duk_small_int_t duk_memcmp_unsafe(const void *s1, const void *s2, duk_size_t len);
 
 DUK_INTERNAL_DECL duk_bool_t duk_is_whole_get_int32_nonegzero(duk_double_t x, duk_int32_t *ival);
 DUK_INTERNAL_DECL duk_bool_t duk_is_whole_get_int32(duk_double_t x, duk_int32_t *ival);
@@ -2940,7 +2940,7 @@ DUK_INTERNAL_DECL duk_bool_t duk_double_is_finite(duk_double_t x);
 DUK_INTERNAL_DECL duk_bool_t duk_double_is_integer(duk_double_t x);
 DUK_INTERNAL_DECL duk_bool_t duk_double_is_safe_integer(duk_double_t x);
 
-DUK_INTERNAL_DECL duk_double_t duk_double_div(duk_double_t x, duk_double_t y);
+DUK_INTERNAL_DECL DUK_INLINE duk_double_t duk_double_div(duk_double_t x, duk_double_t y);
 DUK_INTERNAL_DECL duk_int_t duk_double_to_int_t(duk_double_t x);
 DUK_INTERNAL_DECL duk_uint_t duk_double_to_uint_t(duk_double_t x);
 DUK_INTERNAL_DECL duk_int32_t duk_double_to_int32_t(duk_double_t x);