diff --git a/poppler/GlobalParamsWin.cc b/poppler/GlobalParamsWin.cc
index bbb8aae..d8065e0 100644
--- a/poppler/GlobalParamsWin.cc
+++ b/poppler/GlobalParamsWin.cc
@@ -388,8 +388,8 @@ static GooString* replaceSuffix(GooString *path,
 {
   int suffLenA = strlen(suffixA);
   int suffLenB = strlen(suffixB);
-  int baseLenA = path->getLength() - sufflenA;
-  int baseLenB = path->getLength() - sufflenB;
+  int baseLenA = path->getLength() - suffLenA;
+  int baseLenB = path->getLength() - suffLenB;
 
   if (!strcasecmp(path->getCString()+baseLenA, suffixA)) {
     path->del(baseLenA,suffLenA)->append(suffixB);