diff --git a/CHANGELOG.md b/CHANGELOG.md
index 35e514ec..4ba60af1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- Sonarr: Fix unexpected missing terms when using filters. (#69)
+
 ## [2.0.1] - 2022-05-19
 
 ### Fixed
diff --git a/src/TrashLib.Tests/Sonarr/ReleaseProfile/ReleaseProfileDataFiltererTest.cs b/src/TrashLib.Tests/Sonarr/ReleaseProfile/ReleaseProfileDataFiltererTest.cs
index bcf78256..31c710c5 100644
--- a/src/TrashLib.Tests/Sonarr/ReleaseProfile/ReleaseProfileDataFiltererTest.cs
+++ b/src/TrashLib.Tests/Sonarr/ReleaseProfile/ReleaseProfileDataFiltererTest.cs
@@ -18,7 +18,9 @@ public class ReleaseProfileDataFiltererTest
         {
             new() {TrashId = "1", Term = "term1"},
             new() {TrashId = "2", Term = "term2"},
-            new() {TrashId = "3", Term = "term3"}
+            new() {TrashId = "3", Term = "term3"},
+            new() {Term = "term4"},
+            new() {Term = "term5"}
         };
 
         var result = sut.IncludeTerms(terms, filter);
@@ -42,7 +44,9 @@ public class ReleaseProfileDataFiltererTest
                 {
                     new() {TrashId = "1", Term = "term1"},
                     new() {TrashId = "2", Term = "term2"},
-                    new() {TrashId = "3", Term = "term3"}
+                    new() {TrashId = "3", Term = "term3"},
+                    new() {Term = "term4"},
+                    new() {Term = "term5"}
                 }
             },
             new()
@@ -77,14 +81,18 @@ public class ReleaseProfileDataFiltererTest
         {
             new() {TrashId = "1", Term = "term1"},
             new() {TrashId = "2", Term = "term2"},
-            new() {TrashId = "3", Term = "term3"}
+            new() {TrashId = "3", Term = "term3"},
+            new() {Term = "term4"},
+            new() {Term = "term5"}
         };
 
         var result = sut.ExcludeTerms(terms, filter);
 
         result.Should().BeEquivalentTo(new TermData[]
         {
-            new() {TrashId = "3", Term = "term3"}
+            new() {TrashId = "3", Term = "term3"},
+            new() {Term = "term4"},
+            new() {Term = "term5"}
         });
     }
 
@@ -101,7 +109,9 @@ public class ReleaseProfileDataFiltererTest
                 {
                     new() {TrashId = "1", Term = "term1"},
                     new() {TrashId = "2", Term = "term2"},
-                    new() {TrashId = "3", Term = "term3"}
+                    new() {TrashId = "3", Term = "term3"},
+                    new() {Term = "term4"},
+                    new() {Term = "term5"}
                 }
             },
             new()
@@ -109,7 +119,9 @@ public class ReleaseProfileDataFiltererTest
                 Score = 20,
                 Terms = new TermData[]
                 {
-                    new() {TrashId = "4", Term = "term4"}
+                    new() {TrashId = "4", Term = "term4"},
+                    new() {Term = "term6"},
+                    new() {Term = "term7"}
                 }
             }
         };
@@ -123,7 +135,9 @@ public class ReleaseProfileDataFiltererTest
                 Score = 10,
                 Terms = new TermData[]
                 {
-                    new() {TrashId = "3", Term = "term3"}
+                    new() {TrashId = "3", Term = "term3"},
+                    new() {Term = "term4"},
+                    new() {Term = "term5"}
                 }
             },
             new()
@@ -131,7 +145,9 @@ public class ReleaseProfileDataFiltererTest
                 Score = 20,
                 Terms = new TermData[]
                 {
-                    new() {TrashId = "4", Term = "term4"}
+                    new() {TrashId = "4", Term = "term4"},
+                    new() {Term = "term6"},
+                    new() {Term = "term7"}
                 }
             }
         });
diff --git a/src/TrashLib/Sonarr/ReleaseProfile/ReleaseProfileDataFilterer.cs b/src/TrashLib/Sonarr/ReleaseProfile/ReleaseProfileDataFilterer.cs
index dc21eecb..e77be0e0 100644
--- a/src/TrashLib/Sonarr/ReleaseProfile/ReleaseProfileDataFilterer.cs
+++ b/src/TrashLib/Sonarr/ReleaseProfile/ReleaseProfileDataFilterer.cs
@@ -21,22 +21,22 @@ public class ReleaseProfileDataFilterer
     }
 
     public ReadOnlyCollection<TermData> ExcludeTerms(IEnumerable<TermData> terms,
-        IEnumerable<string> includeFilter)
+        IEnumerable<string> excludeFilter)
     {
         return terms
-            .ExceptBy(includeFilter, x => x.TrashId, StringComparer.InvariantCultureIgnoreCase)
+            .Where(x => !excludeFilter.Contains(x.TrashId, StringComparer.InvariantCultureIgnoreCase))
             .IsValid(new TermDataValidator(), (e, x) => LogInvalidTerm(e, $"Exclude: {x}"))
             .ToList().AsReadOnly();
     }
 
     public ReadOnlyCollection<PreferredTermData> ExcludeTerms(IEnumerable<PreferredTermData> terms,
-        IReadOnlyCollection<string> includeFilter)
+        IReadOnlyCollection<string> excludeFilter)
     {
         return terms
             .Select(x => new PreferredTermData
             {
                 Score = x.Score,
-                Terms = ExcludeTerms(x.Terms, includeFilter)
+                Terms = ExcludeTerms(x.Terms, excludeFilter)
             })
             .IsValid(new PreferredTermDataValidator(), (e, x) => LogInvalidTerm(e, $"Exclude Preferred: {x}"))
             .ToList()
@@ -47,9 +47,8 @@ public class ReleaseProfileDataFilterer
         IEnumerable<string> includeFilter)
     {
         return terms
-            .IntersectBy(includeFilter, x => x.TrashId, StringComparer.InvariantCultureIgnoreCase)
-            .IsValid(new TermDataValidator(),
-                (e, x) => LogInvalidTerm(e, $"Include: {x}"))
+            .Where(x => includeFilter.Contains(x.TrashId, StringComparer.InvariantCultureIgnoreCase))
+            .IsValid(new TermDataValidator(), (e, x) => LogInvalidTerm(e, $"Include: {x}"))
             .ToList().AsReadOnly();
     }