diff --git a/src/gui/image/qppmhandler.cpp b/src/gui/image/qppmhandler.cpp

index 9cacfab2..6ab58b25 100644

--- a/src/gui/image/qppmhandler.cpp

+++ b/src/gui/image/qppmhandler.cpp

@@ -108,7 +108,7 @@ static bool read_pbm_header(QIODevice *device, char& type, int& w, int& h, int&

     else

         mcc = read_pbm_int(device);               // get max color component

-    if (w <= 0 || w > 32767 || h <= 0 || h > 32767 || mcc <= 0)

+    if (w <= 0 || w > 32767 || h <= 0 || h > 32767 || mcc <= 0 || mcc > 0xffff)

         return false;                                        // weird P.M image

     return true;