diff --git a/libbb/capability.c b/libbb/capability.c
index 6587dcb..d0ae78b 100644
--- a/libbb/capability.c
+++ b/libbb/capability.c
@@ -67,7 +67,7 @@
 		goto found;
 	}
 	for (i = 0; i < ARRAY_SIZE(capabilities); i++) {
-		if (strcasecmp(capabilities[i], cap) != 0)
+		if (strcasecmp(capabilities[i], cap) == 0)
 			goto found;
 	}
 	bb_error_msg_and_die("unknown capability '%s'", cap);