diff --git a/lib/checksizeof.cpp b/lib/checksizeof.cpp
index 0c1f63a27..03bd6178b 100644
--- a/lib/checksizeof.cpp
+++ b/lib/checksizeof.cpp
@@ -189,6 +189,9 @@ void CheckSizeof::checkSizeofForPointerSize()
             // This is to allow generic operations with sizeof
             for (; tokSize && tokSize->str() != ")" && tokSize->str() != "," && tokSize->str() != "sizeof"; tokSize = tokSize->next()) {}
 
+            if (tokSize->str() != "sizeof")
+                continue;
+
             if (Token::simpleMatch(tokSize, "sizeof ( &"))
                 tokSize = tokSize->tokAt(3);
             else if (Token::Match(tokSize, "sizeof (|&"))
diff --git a/test/testsizeof.cpp b/test/testsizeof.cpp
index 5a1ff67b6..3d22b3adb 100644
--- a/test/testsizeof.cpp
+++ b/test/testsizeof.cpp
@@ -537,6 +537,11 @@ private:
               "  memset(tab + confsize, 0, sizeof(tab[confsize]));\n"
               "}");
         ASSERT_EQUALS("", errout.str());
+
+        check("int f(char* aug) {\n"
+              "  memmove(aug + extra_string, aug, buf - (bfd_byte *)aug);\n" // #7100
+              "}");
+        ASSERT_EQUALS("", errout.str());
     }
 
     void checkPointerSizeofStruct() {