diff --git a/src/lib/memcpy.c b/src/lib/memcpy.c
index 16db67766d..1053a531c8 100644
--- a/src/lib/memcpy.c
+++ b/src/lib/memcpy.c
@@ -5,7 +5,7 @@ void *memcpy(void *vdest, const void *vsrc, size_t bytes)
 	char *dest = vdest;
 	int i;
 
-	for (i = 0; i < bytes; i++)
+	for (i = 0; i < (int)bytes; i++)
 		dest[i] = src[i];
 
 	return vdest;
diff --git a/src/lib/memset.c b/src/lib/memset.c
index c1bb4f841f..bac3305590 100644
--- a/src/lib/memset.c
+++ b/src/lib/memset.c
@@ -5,7 +5,7 @@ void *memset(void *s, int c, size_t n)
 	int i;
 	char *ss = (char *) s;
 
-	for (i = 0; i < n; i++)
+	for (i = 0; i < (int)n; i++)
 		ss[i] = c;
 
 	return s;