diff --git a/tool/decode/lib/peidnames.c b/tool/decode/lib/peidnames.c
index 32f1b9eba..3fa853c87 100644
--- a/tool/decode/lib/peidnames.c
+++ b/tool/decode/lib/peidnames.c
@@ -148,7 +148,7 @@ const struct IdName kNtImageCharacteristicNames[] = {
     {kNtImageFileExecutableImage, "kNtImageFileExecutableImage"},
     {kNtImageFileLineNumsStripped, "kNtImageFileLineNumsStripped"},
     {kNtImageFileLocalSymsStripped, "kNtImageFileLocalSymsStripped"},
-    {kNtImageFileAggressiveWsTrim, "kNtImageFileAggressiveWsTrim"},
+    {kNtImageFileAggresiveWsTrim, "kNtImageFileAggresiveWsTrim"},
     {kNtImageFileLargeAddressAware, "kNtImageFileLargeAddressAware"},
     {kNtImageFileBytesReversedLo, "kNtImageFileBytesReversedLo"},
     {kNtImageFile32bitMachine, "kNtImageFile32bitMachine"},