diff --git a/attn/attn_config.hpp b/attn/attn_config.hpp
index 98a6606..a736b16 100644
--- a/attn/attn_config.hpp
+++ b/attn/attn_config.hpp
@@ -7,11 +7,11 @@
 /** @brief configuration flags */
 enum AttentionFlag
 {
-    enVital       = 0,
-    enCheckstop   = 1,
-    enTerminate   = 2,
+    enVital = 0,
+    enCheckstop = 1,
+    enTerminate = 2,
     enBreakpoints = 3,
-    dfltTi        = 4,
+    dfltTi = 4,
     enClrAttnIntr = 5,
     lastFlag
 };