diff --git a/src/modules/solver/moduleSolver.f90 b/src/modules/solver/moduleSolver.f90
index e557495..da2c9c4 100644
--- a/src/modules/solver/moduleSolver.f90
+++ b/src/modules/solver/moduleSolver.f90
@@ -518,6 +518,11 @@ MODULE moduleSolver
 
       INTEGER, INTENT(in):: t
 
+      IF (t == tInitial) THEN
+        CALL SYSTEM('git rev-parse HEAD > ' // path // folder // '/' // 'fpack_commit.txt')
+
+      END IF
+
       counterOutput = counterOutput + 1
       IF (counterOutput >= triggerOutput .OR. &
           t == tFinal .OR. t == tInitial) THEN