strings.h -> string.h (was just a typo)
diff --git a/test/qcbor_decode_tests.c b/test/qcbor_decode_tests.c
index 6c201e8..6e8f282 100644
--- a/test/qcbor_decode_tests.c
+++ b/test/qcbor_decode_tests.c
@@ -32,7 +32,7 @@
 
 #include "qcbor.h"
 #include "qcbor_decode_tests.h"
-#include <strings.h>
+#include <string.h>
 #include <math.h> // for fabs()
 #include <stdlib.h>