diff --git a/pkg/proc/eval.go b/pkg/proc/eval.go
index 24c5a6bd..61109352 100644
--- a/pkg/proc/eval.go
+++ b/pkg/proc/eval.go
@@ -2038,10 +2038,18 @@ func (v *Variable) mapAccess(idx *Variable) (*Variable, error) {
 		return nil, fmt.Errorf("can not access unreadable map: %v", v.Unreadable)
 	}
 
+	lcfg := loadFullValue
+	if idx.Kind == reflect.String && int64(len(constant.StringVal(idx.Value))) == idx.Len && idx.Len > int64(lcfg.MaxStringLen) {
+		// If the index is a string load as much of the keys to at least match the length of the index.
+		//TODO(aarzilli): when struct literals are implemented this needs to be
+		//done recursively for literal struct fields.
+		lcfg.MaxStringLen = int(idx.Len)
+	}
+
 	first := true
 	for it.next() {
 		key := it.key()
-		key.loadValue(loadFullValue)
+		key.loadValue(lcfg)
 		if key.Unreadable != nil {
 			return nil, fmt.Errorf("can not access unreadable map: %v", key.Unreadable)
 		}
diff --git a/pkg/proc/variables_test.go b/pkg/proc/variables_test.go
index 13c4c445..145364e8 100644
--- a/pkg/proc/variables_test.go
+++ b/pkg/proc/variables_test.go
@@ -794,6 +794,9 @@ func TestEvalExpression(t *testing.T) {
 		// pretty printing special types
 		{"tim1", false, `time.Time(1977-05-25T18:00:00Z)…`, `time.Time(1977-05-25T18:00:00Z)…`, "time.Time", nil},
 		{"tim2", false, `time.Time(2022-06-07T02:03:04-06:00)…`, `time.Time(2022-06-07T02:03:04-06:00)…`, "time.Time", nil},
+
+		// issue #3034 - map access with long string key
+		{`m6["very long string 0123456789a0123456789b0123456789c0123456789d0123456789e0123456789f0123456789g012345678h90123456789i0123456789j0123456789"]`, false, `123`, `123`, "int", nil},
 	}
 
 	ver, _ := goversion.Parse(runtime.Version())