diff --git a/src/kmp.c b/src/kmp.c
index a88db6b..5b553ef 100644
--- a/src/kmp.c
+++ b/src/kmp.c
@@ -3,7 +3,7 @@
 
 #define CHUNK 5
 
-int *create_lps(char *pattern, int pattern_len, int *lps) {
+int create_lps(char *pattern, int pattern_len, int *lps) {
     int last_matched_char = 1;
     int last_prefix_char = 0;
 
@@ -23,8 +23,6 @@ int *create_lps(char *pattern, int pattern_len, int *lps) {
             last_matched_char++;
         }
     }
-
-    return lps;
 }
 
 int *search_pattern(char *text, char *pattern, int *lps, int *match_number, int *residue) {
diff --git a/src/kmp.h b/src/kmp.h
index e0e1926..3310db1 100644
--- a/src/kmp.h
+++ b/src/kmp.h
@@ -1,7 +1,7 @@
 #ifndef KMP_KMP_H
 #define KMP_KMP_H
 
-int *create_lps(char *, int, int *);
+int create_lps(char *, int, int *);
 
 int *search_pattern(char *, char *, int *, int *, int *);