diff --git a/crates/ide-run/src/detect.rs b/crates/ide-run/src/detect.rs
index 7f7c714fe..438ccf6ba 100644
--- a/crates/ide-run/src/detect.rs
+++ b/crates/ide-run/src/detect.rs
@@ -571,7 +571,6 @@ const SPRING_SCAN_FILES: usize = 400;
 /// modules of the build in `build` that apply the Spring Boot plugin:
 /// `java -cp ${classpath} <class>` in the module, the classpath resolved at launch.
 fn spring_boot_apps(root: &Path, build: &Path, out: &mut Vec<RunConfig>) {
-    let mut budget = SPRING_SCAN_FILES;
     let mut modules = vec![build.to_path_buf()];
     let mut level = vec![build.to_path_buf()];
     for _ in 0..ide_core::project_roots::SEARCH_DEPTH {
@@ -579,12 +578,11 @@ fn spring_boot_apps(root: &Path, build: &Path, out: &mut Vec<RunConfig>) {
         modules.extend(level.iter().cloned());
     }
     for module in modules {
-        if budget == 0 {
-            break;
-        }
         if !applies_spring_boot(&module) {
             continue;
         }
+        // A budget per module: a large common library must not starve later app modules.
+        let mut budget = SPRING_SCAN_FILES;
         let module_rel = (module != root).then(|| relative(root, &module).to_string_lossy().replace('\\', "/"));
         for class in spring_boot_classes(&module, &mut budget) {
             let simple = class.rsplit(['.', '$']).next().unwrap_or(&class).to_owned();
diff --git a/crates/ide-run/tests/detect.rs b/crates/ide-run/tests/detect.rs
index 4d6766cf1..73e5d3dc4 100644
--- a/crates/ide-run/tests/detect.rs
+++ b/crates/ide-run/tests/detect.rs
@@ -279,6 +279,32 @@ fn spring_boot_application_of_a_repository_nested_one_or_two_levels_down() {
     }
 }
 
+#[test]
+fn a_large_common_module_does_not_starve_later_app_modules() {
+    // More source files than one scan budget in `a-common` (no app class): the app in `b-app` must still be found.
+    let mut files: Vec<(String, String)> = vec![
+        ("pom.xml".into(), "<project><modules><module>a-common</module><module>b-app</module></modules></project>".into()),
+        ("a-common/pom.xml".into(), BOOT_POM.into()),
+        ("b-app/pom.xml".into(), BOOT_POM.into()),
+        (
+            "b-app/src/main/java/demo/App.java".into(),
+            "package demo;\n@SpringBootApplication\npublic class App {\n  public static void main(String[] args) {}\n}\n".into(),
+        ),
+    ];
+    for i in 0..401 {
+        files.push((format!("a-common/src/main/java/demo/C{i}.java"), format!("package demo;\nclass C{i} {{}}\n")));
+    }
+    let dir = tempfile::tempdir().unwrap();
+    for (path, content) in &files {
+        let p = dir.path().join(path);
+        fs::create_dir_all(p.parent().unwrap()).unwrap();
+        fs::write(p, content).unwrap();
+    }
+    let configs = detect(dir.path());
+    let app = find(&configs, "application:b-app:demo.App");
+    assert_eq!(app.kind, "spring-boot");
+}
+
 #[test]
 fn nested_builds_of_every_kind_and_depth() {
     let dir = project(&[