diff --git a/CHANGELOG.md b/CHANGELOG.md
index 628d6c5f97..91347d4894 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -40,6 +40,7 @@ RELEASING:
 ### Fixed
 - do not enforce a time-dependent routing algorithm unless the weighting requires it ([#1865](https://github.com/GIScience/openrouteservice/pull/1865))
 - failing queries that combined departure/arrival parameters with avoid polygons ([#1871](https://github.com/GIScience/openrouteservice/pull/1871))
+- matrix limit ignored for explicit 'all' value in sources or destinations([#1875](https://github.com/GIScience/openrouteservice/pull/1875))
 
 ## [8.2.0] - 2024-10-09
 ### Added
diff --git a/ors-api/src/main/java/org/heigit/ors/api/services/MatrixService.java b/ors-api/src/main/java/org/heigit/ors/api/services/MatrixService.java
index 3b5f6dde84..9f059d6741 100644
--- a/ors-api/src/main/java/org/heigit/ors/api/services/MatrixService.java
+++ b/ors-api/src/main/java/org/heigit/ors/api/services/MatrixService.java
@@ -23,6 +23,7 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
 import static org.heigit.ors.api.requests.matrix.MatrixRequest.isFlexibleMode;
 
@@ -55,8 +56,10 @@ public org.heigit.ors.matrix.MatrixRequest convertMatrixRequest(MatrixRequest ma
                 endpointsProperties.getMatrix().getMaximumVisitedNodes(),
                 endpointsProperties.getMatrix().getUTurnCost());
 
-        int numberOfSources = matrixRequest.getSources() == null ? matrixRequest.getLocations().size() : matrixRequest.getSources().length;
-        int numberODestinations = matrixRequest.getDestinations() == null ? matrixRequest.getLocations().size() : matrixRequest.getDestinations().length;
+        String[] sources = matrixRequest.getSources();
+        int numberOfSources = sources == null || Objects.equals(sources[0], "all") ? matrixRequest.getLocations().size() : sources.length;
+        String[] destinations = matrixRequest.getDestinations();
+        int numberODestinations = destinations == null || Objects.equals(destinations[0], "all") ? matrixRequest.getLocations().size() : destinations.length;
         Coordinate[] locations = convertLocations(matrixRequest.getLocations(), numberOfSources * numberODestinations, endpointsProperties);
 
         coreRequest.setProfileType(convertToMatrixProfileType(matrixRequest.getProfile()));
diff --git a/ors-api/src/test/java/org/heigit/ors/apitests/matrix/ParamsTest.java b/ors-api/src/test/java/org/heigit/ors/apitests/matrix/ParamsTest.java
index ea2ca3104d..e780cb9fcd 100644
--- a/ors-api/src/test/java/org/heigit/ors/apitests/matrix/ParamsTest.java
+++ b/ors-api/src/test/java/org/heigit/ors/apitests/matrix/ParamsTest.java
@@ -320,6 +320,26 @@ void expect4006004() {
                 .statusCode(400);
     }
 
+    @Test
+    void expect4006004AllAll() {
+
+        JSONObject body = new JSONObject();
+        body.put("locations", getParameter("maximumLocations"));
+        body.put("sources", getParameter("sourcesAll"));
+        body.put("destinations", getParameter("destinationsAll"));
+
+        given()
+                .headers(jsonContent)
+                .pathParam("profile", getParameter("carProfile"))
+                .body(body.toString())
+                .when()
+                .post(getEndPointPath() + "/{profile}/json")
+                .then()
+                .assertThat()
+                .body("error.code", Matchers.is(MatrixErrorCodes.PARAMETER_VALUE_EXCEEDS_MAXIMUM))
+                .statusCode(400);
+    }
+
     @Test
     void expectResolveLocations() {
         JSONObject body = new JSONObject();