diff --git a/Source/exehead/Ui.c b/Source/exehead/Ui.c
index 912f1f23..c14c9086 100644
--- a/Source/exehead/Ui.c
+++ b/Source/exehead/Ui.c
@@ -1414,7 +1414,7 @@ static BOOL CALLBACK InstProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lPa
     {
       DWORD pos  = GetMessagePos();
       HMENU menu = CreatePopupMenu();
-      AppendMenu(menu,MF_STRING,1,GetStringFromStringTab(GetLangString(LANGID_COPYDEATAILS)));
+      AppendMenu(menu,MF_STRING,1,GetStringFromStringTab(GetLangString(LANGID_COPYDETAILS)));
     	if (1==TrackPopupMenu(
         menu,
         TPM_NONOTIFY|TPM_RETURNCMD,
diff --git a/Source/exehead/lang.h b/Source/exehead/lang.h
index 52706fb1..4685bf97 100644
--- a/Source/exehead/lang.h
+++ b/Source/exehead/lang.h
@@ -161,7 +161,7 @@ typedef void *langid_t; // Just so compiler can warn if an ID is given to a
 #define LANGID_CREATEDUNINST          (COMMON_ID(created_uninst))
 #define LANG_INSTCORRUPTED            (COMMON_STR(inst_corrupted))
 #define LANGID_INSTCORRUPTED          (COMMON_ID(inst_corrupted))
-#define LANG_COPYDEATAILS             (COMMON_STR(copy_details))
-#define LANGID_COPYDEATAILS           (COMMON_ID(copy_details))
+#define LANG_COPYDETAILS              (COMMON_STR(copy_details))
+#define LANGID_COPYDETAILS            (COMMON_ID(copy_details))
 
 #endif//_NSIS_LANG_H_