diff --git a/CMakeModules/prepare_version_tag.cmake b/CMakeModules/prepare_version_tag.cmake
index bfe3fadabe8c985f3d18653b9fa6e7f16de56a75..1855b7d6fc5b17bc9a2e6899cf3f3f5aee1fa50a 100644
--- a/CMakeModules/prepare_version_tag.cmake
+++ b/CMakeModules/prepare_version_tag.cmake
@@ -15,9 +15,9 @@ else()
 endif()
 
 execute_process(COMMAND git describe --tags --abbrev=0
-                OUTPUT_VARIABLE VERSION_TAGS
+                OUTPUT_VARIABLE ASAPO_VERSION_TAG
                 WORKING_DIRECTORY ${PROJECT_SOURCE_DIR})
-string(STRIP ${VERSION_TAGS} VERSION_TAGS)
+string(STRIP ${ASAPO_VERSION_TAG} ASAPO_VERSION_TAG)
 
 execute_process(COMMAND git rev-parse --short HEAD
                 OUTPUT_VARIABLE VERSION_COMMIT
@@ -40,9 +40,9 @@ endif()
 
 
 if (${BRANCH} STREQUAL "develop")
-    SET (ASAPO_VERSION_PYTHON ${VERSION_TAGS}.${BRANCH}.${VERSION_COMMIT})
+    SET (ASAPO_VERSION_PYTHON ${ASAPO_VERSION_TAG}.${BRANCH}.${VERSION_COMMIT})
 else()
-    SET (ASAPO_VERSION_PYTHON ${VERSION_TAGS}.${BRANCH}.latest)
+    SET (ASAPO_VERSION_PYTHON ${ASAPO_VERSION_TAG}.${BRANCH}.latest)
 endif()
 
 
diff --git a/docs/doxygen/CMakeLists.txt b/docs/doxygen/CMakeLists.txt
index 60f04d6bd062b8e222b7cd4631024608dc5d3998..52fbc17f83b4f53b2c4fff4d7dd960807fd5cae3 100644
--- a/docs/doxygen/CMakeLists.txt
+++ b/docs/doxygen/CMakeLists.txt
@@ -6,19 +6,19 @@ if(DOXYGEN_EXECUTABLE)
     add_custom_target(
             docs-cpp-producer
             COMMAND
-            PROJECT_NUMBER=${ASAPO_VERSION} ${DOXYGEN_EXECUTABLE} doxygen.ini VERBATIM
+            PROJECT_NUMBER=${ASAPO_VERSION_TAG}-${ASAPO_VERSION} ${DOXYGEN_EXECUTABLE} doxygen.ini VERBATIM
             WORKING_DIRECTORY producer
     )
     add_custom_target(
             docs-cpp-consumer
             COMMAND
-            PROJECT_NUMBER=${ASAPO_VERSION} ${DOXYGEN_EXECUTABLE} doxygen.ini VERBATIM
+            PROJECT_NUMBER=${ASAPO_VERSION_TAG}-${ASAPO_VERSION} ${DOXYGEN_EXECUTABLE} doxygen.ini VERBATIM
             WORKING_DIRECTORY consumer
     )
     add_custom_target(
             docs-cpp ALL
             COMMAND
-            PROJECT_NUMBER=${ASAPO_VERSION}  ${DOXYGEN_EXECUTABLE} doxygen.ini VERBATIM
+            PROJECT_NUMBER=${ASAPO_VERSION_TAG}-${ASAPO_VERSION}  ${DOXYGEN_EXECUTABLE} doxygen.ini VERBATIM
     )
     add_dependencies(docs-cpp docs-cpp-producer docs-cpp-consumer)
 else()