diff --git a/lib/checkbufferoverrun.cpp b/lib/checkbufferoverrun.cpp
index 3647056f0..6b7abe743 100644
--- a/lib/checkbufferoverrun.cpp
+++ b/lib/checkbufferoverrun.cpp
@@ -1740,7 +1740,7 @@ CheckBufferOverrun::ArrayInfo::ArrayInfo(const CheckBufferOverrun::ArrayInfo &ai
     *this = ai;
 }
 
-const CheckBufferOverrun::ArrayInfo & CheckBufferOverrun::ArrayInfo::operator=(const CheckBufferOverrun::ArrayInfo &ai)
+CheckBufferOverrun::ArrayInfo & CheckBufferOverrun::ArrayInfo::operator=(const CheckBufferOverrun::ArrayInfo &ai)
 {
     if (&ai != this)
     {
diff --git a/lib/checkbufferoverrun.h b/lib/checkbufferoverrun.h
index e6ebaa8cf..650c43b41 100644
--- a/lib/checkbufferoverrun.h
+++ b/lib/checkbufferoverrun.h
@@ -126,7 +126,7 @@ public:
     public:
         ArrayInfo();
         ArrayInfo(const ArrayInfo &);
-        const ArrayInfo & operator=(const ArrayInfo &ai);
+        ArrayInfo & operator=(const ArrayInfo &ai);
 
         /**
          * Create array info with specified data