diff --git a/.github/workflows/pack-rpm.yml b/.github/workflows/pack-rpm.yml
index 9fb9becbd..e7943b54f 100644
--- a/.github/workflows/pack-rpm.yml
+++ b/.github/workflows/pack-rpm.yml
@@ -2,6 +2,8 @@
 name: Create RPM package
 on:
   workflow_dispatch:
+  pull_request:
+    paths: ['**CMakeLists.txt', '**.cmake']
 jobs:
   build-rpm-package:
     runs-on: ubuntu-latest
diff --git a/src/Learning/MODL/CMakeLists.txt b/src/Learning/MODL/CMakeLists.txt
index 7cb733f32..8389cf023 100644
--- a/src/Learning/MODL/CMakeLists.txt
+++ b/src/Learning/MODL/CMakeLists.txt
@@ -1,24 +1,22 @@
-# on fedora, binaries built with mpi must ended by _mpich suffix
 file(GLOB cppfiles ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
-add_executable(MODL${MPI_SUFFIX} ${cppfiles} MODL.rc)
 
+# MODL executable On Fedora, binaries built with mpi must be suffixed by _mpich (in stored ${MPI_SUFFIX})
+add_executable(MODL${MPI_SUFFIX} ${cppfiles} MODL.rc)
 target_link_libraries(MODL${MPI_SUFFIX} PUBLIC DTForest KMDRRuleLibrary KWLearningProblem)
-
 set_khiops_options(MODL${MPI_SUFFIX})
+if(MPI)
+  target_link_libraries(MODL${MPI_SUFFIX} PUBLIC PLMPI)
+endif()
 
+# MODL_SO (shared library)
 add_library(MODL_SO SHARED ${cppfiles})
-
 target_link_libraries(MODL_SO PUBLIC DTForest KMDRRuleLibrary KWLearningProblem)
-
 if(MPI)
-  target_link_libraries(MODL PUBLIC PLMPI)
   target_link_libraries(MODL_SO PUBLIC PLMPI)
 endif()
-
 set_target_properties(
   MODL_SO
   PROPERTIES PUBLIC_HEADER MODL_dll.h
              SOVERSION ${PROJECT_VERSION_MAJOR}
              VERSION ${PROJECT_VERSION})
-
 set_khiops_options(MODL_SO)