diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 5b16f62..ff9eaa5 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -4714,7 +4714,7 @@
     // If this operand is already visited, reuse the prior result.
     P = PHIMap.lookup(OpInst);
     if (P) {
-      assert((!PHI || P == PHI) && "inconsitent data flow");
+      assert((!PHI || P == PHI) && "inconsistent data flow");
       PHI = P;
       continue;
     }