diff --git a/src/common/xpmdecod.cpp b/src/common/xpmdecod.cpp
index 2952344fb3..90674a7e51 100644
--- a/src/common/xpmdecod.cpp
+++ b/src/common/xpmdecod.cpp
@@ -136,7 +136,7 @@ wxImage wxXPMDecoder::ReadFile(wxInputStream& stream)
     char *p, *q;
     size_t i;
 
-    if ( stream.Read(xpm_buffer, length).LastError() != wxSTREAM_NO_ERROR )
+    if ( stream.Read(xpm_buffer, length).LastError() == wxSTREAM_READ_ERROR )
         return FALSE;
 
     /*