diff --git a/MANIFEST.in b/MANIFEST.in
index b9e1d722..295d9832 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -742,7 +742,12 @@ include tests/signindex/testy.jar
 include tests/signindex/unsigned.jar
 include tests/source-files/at.bitfire.davdroid/build.gradle
 include tests/source-files/catalog.test/app/build.gradle
+include tests/source-files/catalog.test/buildSrc/build.gradle.kts
+include tests/source-files/catalog.test/buildSrc/settings.gradle.kts
+include tests/source-files/catalog.test/buildSrc2/build.gradle.kts
+include tests/source-files/catalog.test/buildSrc2/settings.gradle.kts
 include tests/source-files/catalog.test/build.gradle.kts
+include tests/source-files/catalog.test/core/build.gradle
 include tests/source-files/catalog.test/libs.versions.toml
 include tests/source-files/catalog.test/gradle/libs.versions.toml
 include tests/source-files/catalog.test/settings.gradle.kts
diff --git a/fdroidserver/scanner.py b/fdroidserver/scanner.py
index fc6c823c..aedede9b 100644
--- a/fdroidserver/scanner.py
+++ b/fdroidserver/scanner.py
@@ -891,7 +891,7 @@ def scan_source(build_dir, build=metadata.Build(), json_per_build=None):
             if m:
                 return m
 
-    catalogs = {}
+    all_catalogs = {}
     # Iterate through all files in the source code
     for root, dirs, files in os.walk(build_dir, topdown=True):
         # It's topdown, so checking the basename is enough
@@ -900,7 +900,7 @@ def scan_source(build_dir, build=metadata.Build(), json_per_build=None):
                 dirs.remove(ignoredir)
 
         if "settings.gradle" in files or "settings.gradle.kts" in files:
-            catalogs = get_catalogs(root)
+            all_catalogs[str(root)] = get_catalogs(root)
 
         for curfile in files:
             if curfile in ['.DS_Store']:
@@ -983,6 +983,13 @@ def scan_source(build_dir, build=metadata.Build(), json_per_build=None):
                             break
 
             elif curfile.endswith('.gradle') or curfile.endswith('.gradle.kts'):
+                catalog_path = str(build_dir)
+                # Find the longest path of dir that the curfile is in
+                for p in all_catalogs:
+                    if os.path.commonpath([root, p]) == p:
+                        catalog_path = p
+                catalogs = all_catalogs.get(catalog_path, {})
+
                 if not os.path.isfile(filepath):
                     continue
                 with open(filepath, 'r', errors='replace') as f:
diff --git a/tests/scanner.TestCase b/tests/scanner.TestCase
index ce606d35..83b6e8ff 100755
--- a/tests/scanner.TestCase
+++ b/tests/scanner.TestCase
@@ -74,7 +74,7 @@ class ScannerTest(unittest.TestCase):
             'se.manyver': 3,
             'lockfile.test': 1,
             'com.lolo.io.onelist': 6,
-            'catalog.test': 10,
+            'catalog.test': 22,
         }
         for d in glob.glob(os.path.join(source_files, '*')):
             build = fdroidserver.metadata.Build()
diff --git a/tests/source-files/catalog.test/buildSrc/build.gradle.kts b/tests/source-files/catalog.test/buildSrc/build.gradle.kts
new file mode 100644
index 00000000..5572706f
--- /dev/null
+++ b/tests/source-files/catalog.test/buildSrc/build.gradle.kts
@@ -0,0 +1,5 @@
+plugins {
+    alias(libs.plugins.google.services)
+    alias(libs.plugins.firebase.crashlytics)
+    alias(projectLibs.plugins.firebase.crashlytics)
+}
diff --git a/tests/source-files/catalog.test/buildSrc/settings.gradle.kts b/tests/source-files/catalog.test/buildSrc/settings.gradle.kts
new file mode 100644
index 00000000..98644daf
--- /dev/null
+++ b/tests/source-files/catalog.test/buildSrc/settings.gradle.kts
@@ -0,0 +1,22 @@
+pluginManagement {
+    repositories {
+        gradlePluginPortal()
+    }
+}
+
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    versionCatalogs {
+        create("libs") {
+            from(files("../gradle/libs.versions.toml"))
+        }
+    }
+}
+
+rootProject.name = "buildSrc"
+rootProject.buildFileName = "buildSrc.gradle.kts"
diff --git a/tests/source-files/catalog.test/buildSrc2/build.gradle.kts b/tests/source-files/catalog.test/buildSrc2/build.gradle.kts
new file mode 100644
index 00000000..5572706f
--- /dev/null
+++ b/tests/source-files/catalog.test/buildSrc2/build.gradle.kts
@@ -0,0 +1,5 @@
+plugins {
+    alias(libs.plugins.google.services)
+    alias(libs.plugins.firebase.crashlytics)
+    alias(projectLibs.plugins.firebase.crashlytics)
+}
diff --git a/tests/source-files/catalog.test/buildSrc2/settings.gradle.kts b/tests/source-files/catalog.test/buildSrc2/settings.gradle.kts
new file mode 100644
index 00000000..98644daf
--- /dev/null
+++ b/tests/source-files/catalog.test/buildSrc2/settings.gradle.kts
@@ -0,0 +1,22 @@
+pluginManagement {
+    repositories {
+        gradlePluginPortal()
+    }
+}
+
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    versionCatalogs {
+        create("libs") {
+            from(files("../gradle/libs.versions.toml"))
+        }
+    }
+}
+
+rootProject.name = "buildSrc"
+rootProject.buildFileName = "buildSrc.gradle.kts"
diff --git a/tests/source-files/catalog.test/core/build.gradle b/tests/source-files/catalog.test/core/build.gradle
new file mode 100644
index 00000000..72c9d184
--- /dev/null
+++ b/tests/source-files/catalog.test/core/build.gradle
@@ -0,0 +1,2 @@
+implementation libs.bundles.firebase
+implementation libs.play.service.ads