diff --git a/goblint.opam b/goblint.opam
index 8c369b5381..7027f58b66 100644
--- a/goblint.opam
+++ b/goblint.opam
@@ -74,7 +74,7 @@ dev-repo: "git+https://github.com/goblint/analyzer.git"
 # also remember to generate/adjust goblint.opam.locked!
 available: os-distribution != "alpine" & arch != "arm64"
 pin-depends: [
-  [ "goblint-cil.2.0.0" "git+https://github.com/goblint/cil.git#3d079de2568eba596e821f8efb1db292bbfe104c" ]
+  [ "goblint-cil.2.0.0" "git+https://github.com/goblint/cil.git#56a58af3aa160ae64759fa1c893b08a4148eeb9c" ]
   # TODO: add back after release, only pinned for optimization (https://github.com/ocaml-ppx/ppx_deriving/pull/252)
   [ "ppx_deriving.5.2.1" "git+https://github.com/ocaml-ppx/ppx_deriving.git#0a89b619f94cbbfc3b0fb3255ab4fe5bc77d32d6" ]
   # TODO: add back after release, only pinned for CI stability
diff --git a/goblint.opam.locked b/goblint.opam.locked
index b288ea1b69..08ca53ae98 100644
--- a/goblint.opam.locked
+++ b/goblint.opam.locked
@@ -124,7 +124,7 @@ available: os-distribution != "alpine" & arch != "arm64"
 pin-depends: [
   [
     "goblint-cil.2.0.0"
-    "git+https://github.com/goblint/cil.git#3d079de2568eba596e821f8efb1db292bbfe104c"
+    "git+https://github.com/goblint/cil.git#56a58af3aa160ae64759fa1c893b08a4148eeb9c"
   ]
   [
     "apron.v0.9.13"
diff --git a/goblint.opam.template b/goblint.opam.template
index 9e0286b21e..95157ecfbe 100644
--- a/goblint.opam.template
+++ b/goblint.opam.template
@@ -2,7 +2,7 @@
 # also remember to generate/adjust goblint.opam.locked!
 available: os-distribution != "alpine" & arch != "arm64"
 pin-depends: [
-  [ "goblint-cil.2.0.0" "git+https://github.com/goblint/cil.git#3d079de2568eba596e821f8efb1db292bbfe104c" ]
+  [ "goblint-cil.2.0.0" "git+https://github.com/goblint/cil.git#56a58af3aa160ae64759fa1c893b08a4148eeb9c" ]
   # TODO: add back after release, only pinned for optimization (https://github.com/ocaml-ppx/ppx_deriving/pull/252)
   [ "ppx_deriving.5.2.1" "git+https://github.com/ocaml-ppx/ppx_deriving.git#0a89b619f94cbbfc3b0fb3255ab4fe5bc77d32d6" ]
   # TODO: add back after release, only pinned for CI stability
diff --git a/src/util/cilfacade.ml b/src/util/cilfacade.ml
index 9f2a54ab03..576bcd5ee7 100644
--- a/src/util/cilfacade.ml
+++ b/src/util/cilfacade.ml
@@ -19,7 +19,9 @@ let isFloatType t =
   | _ -> false
 
 let init_options () =
-  Mergecil.merge_inlines := get_bool "cil.merge.inlines"
+  Mergecil.merge_inlines := get_bool "cil.merge.inlines";
+  Cil.cstd := Cil.cstd_of_string (get_string "cil.cstd");
+  Cil.gnu89inline := get_bool "cil.gnu89inline"
 
 let init () =
   initCIL ();
diff --git a/src/util/options.schema.json b/src/util/options.schema.json
index 00f68fb619..4f654bd0a5 100644
--- a/src/util/options.schema.json
+++ b/src/util/options.schema.json
@@ -263,6 +263,19 @@
             }
           },
           "additionalProperties": false
+        },
+        "cstd": {
+          "title": "cil.cstd",
+          "type": "string",
+          "description": "Specify the c standard used for parsing.",
+          "default": "c99",
+          "enum": ["c90", "c99", "c11"]
+        },
+        "gnu89inline": {
+          "title": "cil.gnu89inline",
+          "type": "boolean",
+          "description": "Indicates whether gnu89 semantic should be used for inline functions.",
+          "default": false
         }
       },
       "additionalProperties": false