diff --git a/CHANGELOG.md b/CHANGELOG.md
index b595c40564..ba4632c0e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,6 +39,7 @@ RELEASING:
   
 ### Fixed
 - prioritize graph build date over data date in routing request ([#925](https://github.com/GIScience/openrouteservice/issues/925))
+- Config file parameter to set the number of active landmarks for core routing ([#930](https://github.com/GIScience/openrouteservice/issues/930))
 
 ## [6.4.3] - 2021-04-28
 ### Changed
diff --git a/openrouteservice/src/main/java/org/heigit/ors/routing/RoutingProfile.java b/openrouteservice/src/main/java/org/heigit/ors/routing/RoutingProfile.java
index bf770e0521..52b83c913f 100644
--- a/openrouteservice/src/main/java/org/heigit/ors/routing/RoutingProfile.java
+++ b/openrouteservice/src/main/java/org/heigit/ors/routing/RoutingProfile.java
@@ -103,6 +103,7 @@ public class RoutingProfile {
     private static final String VAL_ENABLED = "enabled";
     private static final String KEY_THREADS = "threads";
     private static final String KEY_WEIGHTINGS = "weightings";
+    private static final String KEY_LMSETS = "lmsets";
     private static final String KEY_MAXCELLNODES = "maxcellnodes";
     private static final String KEY_METHODS_LM = "methods.lm";
     private static final String KEY_LANDMARKS = "landmarks";
@@ -342,8 +343,8 @@ private static CmdArgs createGHSettings(String sourceFile, RouteProfileConfigura
                             args.put("prepare.core.threads", coreOpts.getInt(KEY_THREADS));
                         if (coreOpts.hasPath(KEY_WEIGHTINGS))
                             args.put(KEY_PREPARE_CORE_WEIGHTINGS, StringUtility.trimQuotes(coreOpts.getString(KEY_WEIGHTINGS)));
-                        if (coreOpts.hasPath("lmsets"))
-                            args.put("prepare.corelm.lmsets", StringUtility.trimQuotes(coreOpts.getString("lmsets")));
+                        if (coreOpts.hasPath(KEY_LMSETS))
+                            args.put("prepare.corelm.lmsets", StringUtility.trimQuotes(coreOpts.getString(KEY_LMSETS)));
                         if (coreOpts.hasPath(KEY_LANDMARKS))
                             args.put("prepare.corelm.landmarks", coreOpts.getInt(KEY_LANDMARKS));
                     }
@@ -354,14 +355,17 @@ private static CmdArgs createGHSettings(String sourceFile, RouteProfileConfigura
         if (config.getExecutionOpts() != null) {
             Config opts = config.getExecutionOpts();
             if (opts.hasPath(KEY_METHODS_CH)) {
-                Config coreOpts = opts.getConfig(KEY_METHODS_CH);
-                if (coreOpts.hasPath(KEY_DISABLING_ALLOWED))
-                    args.put("routing.ch.disabling_allowed", coreOpts.getBoolean(KEY_DISABLING_ALLOWED));
+                Config chOpts = opts.getConfig(KEY_METHODS_CH);
+                if (chOpts.hasPath(KEY_DISABLING_ALLOWED))
+                    args.put("routing.ch.disabling_allowed", chOpts.getBoolean(KEY_DISABLING_ALLOWED));
             }
             if (opts.hasPath(KEY_METHODS_CORE)) {
-                Config chOpts = opts.getConfig(KEY_METHODS_CORE);
-                if (chOpts.hasPath(KEY_DISABLING_ALLOWED))
-                    args.put("routing.core.disabling_allowed", chOpts.getBoolean(KEY_DISABLING_ALLOWED));
+                Config coreOpts = opts.getConfig(KEY_METHODS_CORE);
+                if (coreOpts.hasPath(KEY_DISABLING_ALLOWED))
+                    args.put("routing.core.disabling_allowed", coreOpts.getBoolean(KEY_DISABLING_ALLOWED));
+
+                if (coreOpts.hasPath(KEY_ACTIVE_LANDMARKS))
+                    args.put("routing.corelm.active_landmarks", coreOpts.getInt(KEY_ACTIVE_LANDMARKS));
             }
             if (opts.hasPath(KEY_METHODS_LM)) {
                 Config lmOpts = opts.getConfig(KEY_METHODS_LM);
@@ -371,14 +375,6 @@ private static CmdArgs createGHSettings(String sourceFile, RouteProfileConfigura
                 if (lmOpts.hasPath(KEY_ACTIVE_LANDMARKS))
                     args.put("routing.lm.active_landmarks", lmOpts.getInt(KEY_ACTIVE_LANDMARKS));
             }
-            if (opts.hasPath("methods.corelm")) {
-                Config lmOpts = opts.getConfig("methods.corelm");
-                if (lmOpts.hasPath(KEY_DISABLING_ALLOWED))
-                    args.put("routing.lm.disabling_allowed", lmOpts.getBoolean(KEY_DISABLING_ALLOWED));
-
-                if (lmOpts.hasPath(KEY_ACTIVE_LANDMARKS))
-                    args.put("routing.corelm.active_landmarks", lmOpts.getInt(KEY_ACTIVE_LANDMARKS));
-            }
         }
 
         if (config.getOptimize() && !prepareCH)
diff --git a/openrouteservice/src/main/java/org/heigit/ors/routing/graphhopper/extensions/core/CoreLMAlgoFactoryDecorator.java b/openrouteservice/src/main/java/org/heigit/ors/routing/graphhopper/extensions/core/CoreLMAlgoFactoryDecorator.java
index cd315a2215..1ea928f782 100644
--- a/openrouteservice/src/main/java/org/heigit/ors/routing/graphhopper/extensions/core/CoreLMAlgoFactoryDecorator.java
+++ b/openrouteservice/src/main/java/org/heigit/ors/routing/graphhopper/extensions/core/CoreLMAlgoFactoryDecorator.java
@@ -81,7 +81,7 @@ public void init(CmdArgs args) {
         setPreparationThreads(args.getInt(CoreLandmark.PREPARE + "threads", getPreparationThreads()));
 
         landmarkCount = args.getInt(CoreLandmark.COUNT, landmarkCount);
-        activeLandmarkCount = args.getInt(CoreLandmark.ACTIVE_COUNT, Math.min(4, landmarkCount));
+        activeLandmarkCount = args.getInt(CoreLandmark.ACTIVE_COUNT_DEFAULT, Math.min(4, landmarkCount));
         logDetails = args.getBool(CoreLandmark.PREPARE + "log_details", false);
         minNodes = args.getInt(CoreLandmark.PREPARE + "min_network_size", -1);
 
diff --git a/openrouteservice/src/main/java/org/heigit/ors/routing/graphhopper/extensions/util/ORSParameters.java b/openrouteservice/src/main/java/org/heigit/ors/routing/graphhopper/extensions/util/ORSParameters.java
index f50e66183f..dafd356e42 100644
--- a/openrouteservice/src/main/java/org/heigit/ors/routing/graphhopper/extensions/util/ORSParameters.java
+++ b/openrouteservice/src/main/java/org/heigit/ors/routing/graphhopper/extensions/util/ORSParameters.java
@@ -55,7 +55,7 @@ private CoreLandmark() {}
 
         public static final String PREPARE = "prepare.corelm.";
         /**
-         * This property name in HintsMap configures at runtime if CH routing should be ignored.
+         * Specifies landmark sets.
          */
         public static final String LMSETS = PREPARE + "lmsets";
         /**
@@ -65,7 +65,7 @@ private CoreLandmark() {}
         /**
          * Specifies how many active landmarks should be used when routing
          */
-        public static final String ACTIVE_COUNT = ROUTING_INIT_PREFIX + "corelm.active_landmarks";
+        public static final String ACTIVE_COUNT = "corelm.active_landmarks";
         /**
          * Default for active count
          */