diff --git a/src/parallelization.f90 b/src/parallelization.f90
index 94bf6d343..d9ca15981 100644
--- a/src/parallelization.f90
+++ b/src/parallelization.f90
@@ -33,6 +33,7 @@ module parallelization
 #endif
 
 #ifndef PETSC
+public :: parallelization_bcast_str
 
 contains
 subroutine parallelization_bcast_str(string)