diff --git a/components/libc/minilibc/string.c b/components/libc/minilibc/string.c
index 568e9795ef..4969ed2fc6 100644
--- a/components/libc/minilibc/string.c
+++ b/components/libc/minilibc/string.c
@@ -146,10 +146,10 @@ int  strncasecmp ( const char* s1, const char* s2, size_t len )
 		x1 = *s1 - 'A'; if ((x1 < 26u)) x1 += 32;
 		s1++; s2++;
 
-		if ((x2 != x1))
+		if (x2 != x1)
 			break;
 
-		if ((x1 == (unsigned int)-'A'))
+		if (x1 == (unsigned int)-'A')
 			break;
 	}