diff --git a/techlibs/common/prep.cc b/techlibs/common/prep.cc
index 71534983d..3dfc60383 100644
--- a/techlibs/common/prep.cc
+++ b/techlibs/common/prep.cc
@@ -63,7 +63,7 @@ struct PrepPass : public ScriptPass
 		log("    -nordff\n");
 		log("        passed to 'memory_dff'. prohibits merging of FFs into memory read ports\n");
 		log("\n");
-		log("     -nokeepdc\n");
+		log("    -nokeepdc\n");
 		log("        do not call opt_* with -keepdc\n");
 		log("\n");
 		log("    -run <from_label>[:<to_label>]\n");