diff --git a/ports/g2o/fix-absolute.patch b/ports/g2o/fix-absolute.patch
index 8b2ee5246faa39..6b4e924e33dd5f 100644
--- a/ports/g2o/fix-absolute.patch
+++ b/ports/g2o/fix-absolute.patch
@@ -2,6 +2,16 @@ diff --git a/CMakeLists.txt b/CMakeLists.txt
 index c3b6ab5..f050970 100644
 --- a/CMakeLists.txt
 +++ b/CMakeLists.txt
+@@ -485,7 +485,8 @@ set(G2O_HAVE_CHOLMOD ${CHOLMOD_FOUND})
+ set(G2O_HAVE_CSPARSE ${G2O_USE_CSPARSE})
+ set(G2O_SHARED_LIBS ${BUILD_SHARED_LIBS})
+ set(G2O_LGPL_SHARED_LIBS ${BUILD_LGPL_SHARED_LIBS})
+-set(G2O_CXX_COMPILER "${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER}")
++cmake_path(GET CMAKE_CXX_COMPILER FILENAME cxx_compiler)
++set(G2O_CXX_COMPILER "${CMAKE_CXX_COMPILER_ID} ${cxx_compiler}")
+
+ # Generate cmake configuration scripts
+ set(G2O_GENERATED_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated")
 @@ -496,7 +496,6 @@ set(G2O_PROJECT_CONFIG "${G2O_GENERATED_DIR}/${PROJECT_NAME}Config.cmake")
  set(G2O_TARGETS_EXPORT_NAME "${PROJECT_NAME}Targets")
  set(G2O_CONFIG_INSTALL_DIR "lib/cmake/${PROJECT_NAME}")
diff --git a/ports/g2o/vcpkg.json b/ports/g2o/vcpkg.json
index 67905648b0354d..247fdce343b013 100644
--- a/ports/g2o/vcpkg.json
+++ b/ports/g2o/vcpkg.json
@@ -1,6 +1,7 @@
 {
   "name": "g2o",
   "version-date": "2023-08-06",
+  "port-version": 1,
   "description": "g2o: A General Framework for Graph Optimization",
   "homepage": "https://openslam.org/g2o.html",
   "dependencies": [
diff --git a/versions/baseline.json b/versions/baseline.json
index 2cde2705ae1723..ad63e09010ee66 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -2990,7 +2990,7 @@
     },
     "g2o": {
       "baseline": "2023-08-06",
-      "port-version": 0
+      "port-version": 1
     },
     "g3log": {
       "baseline": "2.4",
diff --git a/versions/g-/g2o.json b/versions/g-/g2o.json
index 2f2d324d070a99..ab729ed54b401f 100644
--- a/versions/g-/g2o.json
+++ b/versions/g-/g2o.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "6de83a9660c1f5b6e922a56140584c1dbdaa1643",
+      "version-date": "2023-08-06",
+      "port-version": 1
+    },
     {
       "git-tree": "be30b61ad0d13087804bc474abea6673ba269a20",
       "version-date": "2023-08-06",