diff --git a/payloads/libpayload/libc/ctype.c b/payloads/libpayload/libc/ctype.c
index 5485b46097..fba9a7caee 100644
--- a/payloads/libpayload/libc/ctype.c
+++ b/payloads/libpayload/libc/ctype.c
@@ -81,7 +81,7 @@ int ispunct(int c)
 
 int isspace(int c)
 {
-	return (c == ' ' || (c >= '\t' || c <= '\r'));
+	return (c == ' ' || (c >= '\t' && c <= '\r'));
 }
 
 int isupper(int c)