diff --git a/dlls/kernel32/volume.c b/dlls/kernel32/volume.c
index 7cb245aca9c..7a1dc11e67f 100644
--- a/dlls/kernel32/volume.c
+++ b/dlls/kernel32/volume.c
@@ -1911,7 +1911,7 @@ BOOL WINAPI GetVolumePathNameW(LPCWSTR filename, LPWSTR volumepathname, DWORD bu
                 goto cleanup;
             }
         }
-        else if (GetCurrentDirectoryW( sizeof(cwdW), cwdW ))
+        else if (GetCurrentDirectoryW( sizeof(cwdW)/sizeof(cwdW[0]), cwdW ))
         {
             /* if the path is completely bogus then revert to the drive of the working directory */
             fallbackpathW[0] = cwdW[0];