diff --git a/README.org b/README.org
index 6a939bc..e6478ca 100644
--- a/README.org
+++ b/README.org
@@ -140,6 +140,8 @@ lsp:
     # (selected by a server id specified above) in stdio mode
     # Note: launch_command is not used with container subtype servers
     # as a command is embedded in a container itself and serves as an entrypoint
+    # Note: config path mappings are compared with an actual container (with container subtype servers):
+    # container mappings must contain all the config mappings (destination paths inside containers have to be absolute)
   mappings:
     - source: "/your/host/source/path"
       destination: "/your/local/path/inside/a/container"
diff --git a/lsp-docker.el b/lsp-docker.el
index 7ac7709..e772cd4 100644
--- a/lsp-docker.el
+++ b/lsp-docker.el
@@ -324,6 +324,35 @@ the docker container to run the language server."
               (f-same? (f-canonical (car it)) (f-canonical (lsp-workspace-root))))
           path-mappings))
 
+(defun lsp-docker-verify-path-mappings-against-container (path-mappings container-name)
+  "Verify that specified path mappings are all included in container's path mappings"
+  (--all? (let ((source (car it))
+                (destination (cdr it)))
+            (-any? (lambda (mapping)
+                     (and (f-same? source (car mapping))
+                          (equal destination (cdr mapping))))
+                   (lsp-docker-get-path-mappings-from-container container-name)))
+          path-mappings))
+
+(defun lsp-docker-get-path-mappings-from-container (container-name)
+  "Get path mappings from a container"
+  (-let ((
+          (inspection-command-program . inspection-command-arguments)
+          (--map-when
+           (equal it "'{{.Mounts}}'")
+           "'{{json .Mounts}}'"
+           (s-split " " (format "%s container inspect -f '{{.Mounts}}' %s" lsp-docker-command container-name)))))
+    (-let (((exit-code . raw-output) (with-temp-buffer
+                                  (cons
+                                   (apply #'call-process inspection-command-program nil (current-buffer) nil inspection-command-arguments)
+                                   (buffer-string)))))
+      (if (equal exit-code 0)
+          (let* ((output (s-chop-prefix "'" (s-chop-suffix "'" (s-chomp raw-output))))
+                 (raw-mappings (append (json-parse-string output) nil)) ; using append to convert a vector to a list
+                 (bind-mappings (--filter (and (equal (gethash "Type" it) "bind") (equal (gethash "RW" it) t)) raw-mappings)))
+            (--map (cons (f-canonical (gethash "Source" it)) (f-canonical (gethash "Destination" it))) bind-mappings))
+        (user-error "Cannot analyze the following container: %s, exit code: %d" container-name exit-code)))))
+
 (defun lsp-docker-launch-existing-container (docker-container-name &rest _unused)
   "Return the docker command to be executed on host.
 Argument DOCKER-CONTAINER-NAME name to use for container."
@@ -416,18 +445,20 @@ Argument DOCKER-CONTAINER-NAME name to use for container."
                                       :priority lsp-docker-default-priority
                                       :server-command server-launch-command
                                       :launch-server-cmd-fn #'lsp-docker-launch-new-container))
-                             ('container (lsp-docker-register-client-with-activation-fn
-                                          :server-id regular-server-id
-                                          :docker-server-id server-id
-                                          :path-mappings path-mappings
-                                          :docker-image-id nil
-                                          :docker-container-name server-container-name
-                                          :docker-container-name-suffix nil
-                                          :activation-fn (lsp-docker-create-activation-function-by-project-dir (lsp-workspace-root))
-                                          :priority lsp-docker-default-priority
-                                          :server-command server-launch-command
-                                          :launch-server-cmd-fn #'lsp-docker-launch-existing-container))))))
-          (user-error "Invalid LSP docker config: unsupported server type and/or subtype")))
+                             ('container (if (lsp-docker-verify-path-mappings-against-container path-mappings server-container-name)
+                                             (lsp-docker-register-client-with-activation-fn
+                                              :server-id regular-server-id
+                                              :docker-server-id server-id
+                                              :path-mappings path-mappings
+                                              :docker-image-id nil
+                                              :docker-container-name server-container-name
+                                              :docker-container-name-suffix nil
+                                              :activation-fn (lsp-docker-create-activation-function-by-project-dir (lsp-workspace-root))
+                                              :priority lsp-docker-default-priority
+                                              :server-command server-launch-command
+                                              :launch-server-cmd-fn #'lsp-docker-launch-existing-container)
+                                           (user-error "Container path mappings don't match the config ones!")))))))
+          (user-error "Invalid LSP docker config: unsupported server type and/or subtype or malformed mappings!")))
     (user-error (format "Current file: %s is not in a registered project!" (buffer-file-name)))))
 
 (defun lsp-docker-start ()