diff --git a/lib/checkunusedvar.cpp b/lib/checkunusedvar.cpp
index 09acaf715..7be6cf3c7 100644
--- a/lib/checkunusedvar.cpp
+++ b/lib/checkunusedvar.cpp
@@ -430,7 +430,7 @@ static const Token* doAssignment(Variables &variables, const Token *tok, bool de
             Variables::VariableUsage* var2 = variables.find(varid2);
 
             if (var2) { // local variable (alias or read it)
-                if (var1->_type == Variables::pointer) {
+                if (var1->_type == Variables::pointer || var1->_type == Variables::pointerArray) {
                     if (dereference)
                         variables.read(varid2);
                     else {
@@ -439,8 +439,12 @@ static const Token* doAssignment(Variables &variables, const Token *tok, bool de
                             var2->_type == Variables::pointer) {
                             bool replace = true;
 
+                            // pointerArray => don't replace
+                            if (var1->_type == Variables::pointerArray)
+                                replace = false;
+
                             // check if variable declared in same scope
-                            if (scope == var1->_scope)
+                            else if (scope == var1->_scope)
                                 replace = true;
 
                             // not in same scope as declaration
@@ -839,6 +843,8 @@ void CheckUnusedVar::checkFunctionVariableUsage_iterateScopes(const Scope* const
                 } else if (var->_type == Variables::pointer || var->_type == Variables::reference) {
                     variables.read(varid);
                     variables.writeAliases(varid);
+                } else if (var->_type == Variables::pointerArray) {
+                    tok = doAssignment(variables, tok, false, scope);
                 } else
                     variables.writeAll(varid);
             }
diff --git a/test/testunusedvar.cpp b/test/testunusedvar.cpp
index d41bd434b..f340d58e8 100644
--- a/test/testunusedvar.cpp
+++ b/test/testunusedvar.cpp
@@ -1185,6 +1185,25 @@ private:
                               "    *(++ptr) = 0;\n"
                               "}\n");
         ASSERT_EQUALS("", errout.str());
+
+        // #3910
+        functionVariableUsage("int foo() {\n"
+                              "    char buf[5];\n"
+                              "    char *data[2];\n"
+                              "    data[0] = buf;\n"
+                              "    do_something(data);\n"
+                              "}\n");
+        ASSERT_EQUALS("", errout.str());
+
+        functionVariableUsage("int foo() {\n"
+                              "    char buf1[5];\n"
+                              "    char buf2[5];\n"
+                              "    char *data[2];\n"
+                              "    data[0] = buf1;\n"
+                              "    data[1] = buf2;\n"
+                              "    do_something(data);\n"
+                              "}\n");
+        ASSERT_EQUALS("", errout.str());
     }
 
     void localvar17() { // ticket #1720