diff --git a/app/src/androidTest/java/com/orgzly/android/query/QueryTest.kt b/app/src/androidTest/java/com/orgzly/android/query/QueryTest.kt
index 8f9fbfbd6..0f85baf78 100644
--- a/app/src/androidTest/java/com/orgzly/android/query/QueryTest.kt
+++ b/app/src/androidTest/java/com/orgzly/android/query/QueryTest.kt
@@ -163,6 +163,12 @@ class QueryTest(private val param: Parameter) : OrgzlyTest() {
                             expectedSqlSelection = "((COALESCE(tags, '') LIKE ? OR COALESCE(inherited_tags, '') LIKE ?))",
                             expectedSelectionArgs = listOf("%tag%", "%tag%")
                     ),
+                    Parameter(
+                            queryString = ".tn.tag",
+                            expectedQueryString = ".tn.tag",
+                            expectedSqlSelection = "(NOT((COALESCE(tags, '') LIKE ?)))",
+                            expectedSelectionArgs = listOf("%tag%")
+                    ),
                     Parameter(
                             queryString = "i.todo (b.\"book(1) name\" or b.book2)",
                             expectedQueryString = "i.todo (b.\"book(1) name\" or b.book2)",
diff --git a/app/src/main/java/com/orgzly/android/query/Condition.kt b/app/src/main/java/com/orgzly/android/query/Condition.kt
index 7c74a55f9..a0c38657c 100644
--- a/app/src/main/java/com/orgzly/android/query/Condition.kt
+++ b/app/src/main/java/com/orgzly/android/query/Condition.kt
@@ -14,7 +14,7 @@ sealed class Condition {
     data class HasSetPriority(val priority: String, val not: Boolean = false) : Condition()
 
     data class HasTag(val tag: String, val not: Boolean = false) : Condition()
-    data class HasOwnTag(val tag: String) : Condition()
+    data class HasOwnTag(val tag: String, val not: Boolean = false) : Condition()
 
     data class Event(val interval: QueryInterval, val relation: Relation) : Condition()
     data class Scheduled(val interval: QueryInterval, val relation: Relation) : Condition()
diff --git a/app/src/main/java/com/orgzly/android/query/sql/SqliteQueryBuilder.kt b/app/src/main/java/com/orgzly/android/query/sql/SqliteQueryBuilder.kt
index 5a800f39d..6d39450e7 100644
--- a/app/src/main/java/com/orgzly/android/query/sql/SqliteQueryBuilder.kt
+++ b/app/src/main/java/com/orgzly/android/query/sql/SqliteQueryBuilder.kt
@@ -226,7 +226,7 @@ class SqliteQueryBuilder(val context: Context) {
 
             is Condition.HasOwnTag -> {
                 arguments.add("%${expr.tag}%")
-                "tags LIKE ?"
+                not(expr.not, "(COALESCE(tags, '') LIKE ?)")
             }
 
             is Condition.Event -> {
diff --git a/app/src/main/java/com/orgzly/android/query/user/BasicQueryParser.kt b/app/src/main/java/com/orgzly/android/query/user/BasicQueryParser.kt
index 5afc7ff3c..e3ec23fca 100644
--- a/app/src/main/java/com/orgzly/android/query/user/BasicQueryParser.kt
+++ b/app/src/main/java/com/orgzly/android/query/user/BasicQueryParser.kt
@@ -35,8 +35,8 @@ open class BasicQueryParser : QueryParser() {
                 Condition.HasTag(unQuote(match.groupValues[2]), match.groupValues[1].isNotEmpty())
             },
 
-            ConditionMatch("""^own-tag:(.+)""") { match ->
-                Condition.HasOwnTag(unQuote(match.groupValues[1]))
+            ConditionMatch("""^(-)?own-tag:(.+)""") { match ->
+                Condition.HasOwnTag(unQuote(match.groupValues[2]), match.groupValues[1].isNotEmpty())
             },
 
             ConditionMatch("""^(scheduled|deadline|closed|created):(?:(!=|<|<=|>|>=))?(.+)""") { match ->
diff --git a/app/src/main/java/com/orgzly/android/query/user/DottedQueryBuilder.kt b/app/src/main/java/com/orgzly/android/query/user/DottedQueryBuilder.kt
index f2c18a56f..9fa347a17 100644
--- a/app/src/main/java/com/orgzly/android/query/user/DottedQueryBuilder.kt
+++ b/app/src/main/java/com/orgzly/android/query/user/DottedQueryBuilder.kt
@@ -43,7 +43,7 @@ open class DottedQueryBuilder {
             is Condition.HasSetPriority -> "${dot(expr.not)}ps.${expr.priority}"
 
             is Condition.HasTag -> "${dot(expr.not)}t.${expr.tag}"
-            is Condition.HasOwnTag -> "tn.${expr.tag}"
+            is Condition.HasOwnTag -> "${dot(expr.not)}tn.${expr.tag}"
 
             is Condition.Event -> {
                 val rel = expr.relation.toString().toLowerCase()
diff --git a/app/src/main/java/com/orgzly/android/query/user/DottedQueryParser.kt b/app/src/main/java/com/orgzly/android/query/user/DottedQueryParser.kt
index 6b781bac0..90f1f85e7 100644
--- a/app/src/main/java/com/orgzly/android/query/user/DottedQueryParser.kt
+++ b/app/src/main/java/com/orgzly/android/query/user/DottedQueryParser.kt
@@ -36,8 +36,8 @@ open class DottedQueryParser : QueryParser() {
                 Condition.HasTag(unQuote(match.groupValues[2]), match.groupValues[1].isNotEmpty())
             },
 
-            ConditionMatch("""^tn\.(.+)""") { match ->
-                Condition.HasOwnTag(unQuote(match.groupValues[1]))
+            ConditionMatch("""^(\.)?tn\.(.+)""") { match ->
+                Condition.HasOwnTag(unQuote(match.groupValues[2]), match.groupValues[1].isNotEmpty())
             },
 
             ConditionMatch("""^(e|s|d|c|cr)(?:\.(eq|ne|lt|le|gt|ge))?\.(.+)""") { match ->