diff --git a/android/androidmk.go b/android/androidmk.go
index 063830b..a670656 100644
--- a/android/androidmk.go
+++ b/android/androidmk.go
@@ -177,6 +177,18 @@
 	a.EntryMap[name] = append(a.EntryMap[name], value...)
 }
 
+// AddCompatibilityTestSuites adds the supplied test suites to the EntryMap, with special handling
+// for partial MTS test suites.
+func (a *AndroidMkEntries) AddCompatibilityTestSuites(suites ...string) {
+	// MTS supports a full test suite and partial per-module MTS test suites, with naming mts-${MODULE}.
+	// To reduce repetition, if we find a partial MTS test suite without an full MTS test suite,
+	// we add the full test suite to our list.
+	if PrefixInList(suites, "mts-") && !InList("mts", suites) {
+		suites = append(suites, "mts")
+	}
+	a.AddStrings("LOCAL_COMPATIBILITY_SUITE", suites...)
+}
+
 // The contributions to the dist.
 type distContributions struct {
 	// List of goals and the dist copy instructions.
diff --git a/android/csuite_config.go b/android/csuite_config.go
index a5b1533..bf24d98 100644
--- a/android/csuite_config.go
+++ b/android/csuite_config.go
@@ -44,7 +44,7 @@
 			if me.properties.Test_config != nil {
 				entries.SetString("LOCAL_TEST_CONFIG", *me.properties.Test_config)
 			}
-			entries.AddStrings("LOCAL_COMPATIBILITY_SUITE", "csuite")
+			entries.AddCompatibilityTestSuites("csuite")
 		},
 	}
 	return []AndroidMkEntries{androidMkEntries}
diff --git a/cc/androidmk.go b/cc/androidmk.go
index d32e4de..320e69b 100644
--- a/cc/androidmk.go
+++ b/cc/androidmk.go
@@ -334,8 +334,7 @@
 	entries.Class = "NATIVE_TESTS"
 	entries.ExtraEntries = append(entries.ExtraEntries, func(entries *android.AndroidMkEntries) {
 		if len(benchmark.Properties.Test_suites) > 0 {
-			entries.SetString("LOCAL_COMPATIBILITY_SUITE",
-				strings.Join(benchmark.Properties.Test_suites, " "))
+			entries.AddCompatibilityTestSuites(benchmark.Properties.Test_suites...)
 		}
 		if benchmark.testConfig != nil {
 			entries.SetString("LOCAL_FULL_TEST_CONFIG", benchmark.testConfig.String())
@@ -360,8 +359,7 @@
 	}
 	entries.ExtraEntries = append(entries.ExtraEntries, func(entries *android.AndroidMkEntries) {
 		if len(test.Properties.Test_suites) > 0 {
-			entries.SetString("LOCAL_COMPATIBILITY_SUITE",
-				strings.Join(test.Properties.Test_suites, " "))
+			entries.AddCompatibilityTestSuites(test.Properties.Test_suites...)
 		}
 		if test.testConfig != nil {
 			entries.SetString("LOCAL_FULL_TEST_CONFIG", test.testConfig.String())
diff --git a/java/androidmk.go b/java/androidmk.go
index 25369ad..7c06f32 100644
--- a/java/androidmk.go
+++ b/java/androidmk.go
@@ -139,9 +139,9 @@
 func testSuiteComponent(entries *android.AndroidMkEntries, test_suites []string) {
 	entries.SetString("LOCAL_MODULE_TAGS", "tests")
 	if len(test_suites) > 0 {
-		entries.AddStrings("LOCAL_COMPATIBILITY_SUITE", test_suites...)
+		entries.AddCompatibilityTestSuites(test_suites...)
 	} else {
-		entries.SetString("LOCAL_COMPATIBILITY_SUITE", "null-suite")
+		entries.AddCompatibilityTestSuites("null-suite")
 	}
 }
 
diff --git a/python/androidmk.go b/python/androidmk.go
index e60c538..60637d3 100644
--- a/python/androidmk.go
+++ b/python/androidmk.go
@@ -49,7 +49,7 @@
 	entries.Class = "EXECUTABLES"
 
 	entries.ExtraEntries = append(entries.ExtraEntries, func(entries *android.AndroidMkEntries) {
-		entries.AddStrings("LOCAL_COMPATIBILITY_SUITE", p.binaryProperties.Test_suites...)
+		entries.AddCompatibilityTestSuites(p.binaryProperties.Test_suites...)
 	})
 	base.subAndroidMk(entries, p.pythonInstaller)
 }
@@ -58,7 +58,7 @@
 	entries.Class = "NATIVE_TESTS"
 
 	entries.ExtraEntries = append(entries.ExtraEntries, func(entries *android.AndroidMkEntries) {
-		entries.AddStrings("LOCAL_COMPATIBILITY_SUITE", p.binaryDecorator.binaryProperties.Test_suites...)
+		entries.AddCompatibilityTestSuites(p.binaryDecorator.binaryProperties.Test_suites...)
 		if p.testConfig != nil {
 			entries.SetString("LOCAL_FULL_TEST_CONFIG", p.testConfig.String())
 		}
diff --git a/rust/androidmk.go b/rust/androidmk.go
index 4e8b14d..c181d67 100644
--- a/rust/androidmk.go
+++ b/rust/androidmk.go
@@ -90,7 +90,7 @@
 	test.binaryDecorator.AndroidMk(ctx, ret)
 	ret.Class = "NATIVE_TESTS"
 	ret.ExtraEntries = append(ret.ExtraEntries, func(entries *android.AndroidMkEntries) {
-		entries.AddStrings("LOCAL_COMPATIBILITY_SUITE", test.Properties.Test_suites...)
+		entries.AddCompatibilityTestSuites(test.Properties.Test_suites...)
 		if test.testConfig != nil {
 			entries.SetString("LOCAL_FULL_TEST_CONFIG", test.testConfig.String())
 		}
diff --git a/sh/sh_binary.go b/sh/sh_binary.go
index 7e5c344..f86e1fd 100644
--- a/sh/sh_binary.go
+++ b/sh/sh_binary.go
@@ -398,7 +398,7 @@
 			func(entries *android.AndroidMkEntries) {
 				s.customAndroidMkEntries(entries)
 				entries.SetPath("LOCAL_MODULE_PATH", s.installDir.ToMakePath())
-				entries.AddStrings("LOCAL_COMPATIBILITY_SUITE", s.testProperties.Test_suites...)
+				entries.AddCompatibilityTestSuites(s.testProperties.Test_suites...)
 				if s.testConfig != nil {
 					entries.SetPath("LOCAL_FULL_TEST_CONFIG", s.testConfig)
 				}