diff --git a/lib/importproject.cpp b/lib/importproject.cpp
index d2535e983..e187b4796 100644
--- a/lib/importproject.cpp
+++ b/lib/importproject.cpp
@@ -260,7 +260,14 @@ void ImportProject::importCompileCommands(std::istream &istr)
 
     for (const picojson::value &fileInfo : v.get<picojson::array>()) {
         picojson::object obj = fileInfo.get<picojson::object>();
-        const std::string directory = Path::fromNativeSeparators(obj["directory"].get<std::string>());
+        std::string dirpath = obj["directory"].get<std::string>();
+
+        /* CMAKE produces the directory without trailing / so add it if not
+         * there - it is needed by setIncludePaths() */
+        if(!endsWith(dirpath, '/'))
+            dirpath += '/';
+
+        const std::string directory = Path::fromNativeSeparators(dirpath);
         const std::string command = obj["command"].get<std::string>();
         const std::string file = Path::fromNativeSeparators(obj["file"].get<std::string>());
 
diff --git a/test/testimportproject.cpp b/test/testimportproject.cpp
index 4dfdffb40..148c72854 100644
--- a/test/testimportproject.cpp
+++ b/test/testimportproject.cpp
@@ -45,6 +45,7 @@ private:
         TEST_CASE(setIncludePaths3); // macro names are case insensitive
         TEST_CASE(importCompileCommands1);
         TEST_CASE(importCompileCommands2); // #8563
+        TEST_CASE(importCompileCommands3); // check with existing trailing / in directory
     }
 
     void setDefines() const {
@@ -113,6 +114,17 @@ private:
         ASSERT_EQUALS(1, importer.fileSettings.size());
         ASSERT_EQUALS("/tmp/src.c", importer.fileSettings.begin()->filename);
     }
+
+    void importCompileCommands3() const {
+        const char json[] = "[ { \"directory\": \"/tmp/\","
+                            "\"command\": \"gcc -c src.c\","
+                            "\"file\": \"src.c\" } ]";
+        std::istringstream istr(json);
+        TestImporter importer;
+        importer.importCompileCommands(istr);
+        ASSERT_EQUALS(1, importer.fileSettings.size());
+        ASSERT_EQUALS("/tmp/src.c", importer.fileSettings.begin()->filename);
+    }
 };
 
 REGISTER_TEST(TestImportProject)