diff --git a/modules/imgproc/src/histogram.cpp b/modules/imgproc/src/histogram.cpp
index 3f0c3daa2969..864b49b314d2 100644
--- a/modules/imgproc/src/histogram.cpp
+++ b/modules/imgproc/src/histogram.cpp
@@ -3023,7 +3023,7 @@ class EqualizeHistCalcHist_Invoker
                 localHistogram[t0]++; localHistogram[t1]++;
             }
 
-            for (; x < width; ++x, ++ptr)
+            for (; x < width; ++x)
                 localHistogram[ptr[x]]++;
         }