diff --git a/llvm/lib/Target/X86/X86CallFrameOptimization.cpp b/llvm/lib/Target/X86/X86CallFrameOptimization.cpp
index 367ae4f4b5af..79b2771a6670 100644
--- a/llvm/lib/Target/X86/X86CallFrameOptimization.cpp
+++ b/llvm/lib/Target/X86/X86CallFrameOptimization.cpp
@@ -570,7 +570,7 @@ MachineInstr *X86CallFrameOptimization::canFoldIntoRegPush(
   MachineBasicBlock::iterator DefMI = MRI->getVRegDef(Reg);
 
   // Make sure the def is a MOV from memory.
-  // If the def is an another block, give up.
+  // If the def is in another block, give up.
   if ((DefMI->getOpcode() != X86::MOV32rm &&
        DefMI->getOpcode() != X86::MOV64rm) ||
       DefMI->getParent() != FrameSetup->getParent())