diff --git a/src/util-strings.c b/src/util-strings.c
index ebf8e41..f3dcba2 100644
--- a/src/util-strings.c
+++ b/src/util-strings.c
@@ -112,53 +112,3 @@ strv_from_string(const char *in, const char *separators, size_t *num_elements)
 
 	return strv;
 }
-
-/**
- * Return a newly allocated string with all elements joined by the
- * joiner, same as Python's string.join() basically.
- * A strv of ["one", "two", "three", NULL] with a joiner of ", " results
- * in "one, two, three".
- *
- * An empty strv ([NULL]) returns NULL, same for passing NULL as either
- * argument.
- *
- * @param strv Input string array
- * @param joiner Joiner between the elements in the final string
- *
- * @return A null-terminated string joining all elements
- */
-char *
-strv_join(char **strv, const char *joiner)
-{
-	char **s;
-	char *str;
-	size_t slen = 0;
-	size_t count = 0;
-
-	if (!strv || !joiner)
-		return NULL;
-
-	if (strv[0] == NULL)
-		return NULL;
-
-	for (s = strv, count = 0; *s; s++, count++) {
-		slen += strlen(*s);
-	}
-
-	assert(slen < 1000);
-	assert(strlen(joiner) < 1000);
-	assert(count > 0);
-	assert(count < 100);
-
-	slen += (count - 1) * strlen(joiner);
-
-	str = zalloc(slen + 1); /* trailing \0 */
-	for (s = strv; *s; s++) {
-		strcat(str, *s);
-		--count;
-		if (count > 0)
-			strcat(str, joiner);
-	}
-
-	return str;
-}
diff --git a/src/util-strings.h b/src/util-strings.h
index e0b3fb9..5177d8b 100644
--- a/src/util-strings.h
+++ b/src/util-strings.h
@@ -194,7 +194,6 @@ safe_atod(const char *str, double *val)
 }
 
 char **strv_from_string(const char *in, const char *separator, size_t *num_elements);
-char *strv_join(char **strv, const char *joiner);
 
 static inline void
 strv_free(char **strv) {