diff --git a/src/ngrams.c b/src/ngrams.c
index 3992e7d0..905a6902 100644
--- a/src/ngrams.c
+++ b/src/ngrams.c
@@ -1,7 +1,7 @@
 #include "ngrams.h"
 #include "utf8proc/utf8proc.h"
 
-bool add_ngrams(cstring_array *grams, char *str, size_t n, size_t len, bool prefix, bool suffix) {
+bool add_ngrams(cstring_array *grams, size_t n, char *str, size_t len, bool prefix, bool suffix) {
     if (n == 0) return false;
     
     size_t lengths[n];
diff --git a/src/ngrams.h b/src/ngrams.h
index 8200b6ce..798a361e 100644
--- a/src/ngrams.h
+++ b/src/ngrams.h
@@ -1,3 +1,3 @@
 #include "string_utils.h"
 
-bool add_ngrams(cstring_array *grams, char *str, size_t n, size_t len, bool prefix, bool suffix);
\ No newline at end of file
+bool add_ngrams(cstring_array *grams, size_t n, char *str, size_t len, bool prefix, bool suffix);