diff --git a/lib/run_part.c b/lib/run_part.c
index 1ce06be0..884bbefa 100644
--- a/lib/run_part.c
+++ b/lib/run_part.c
@@ -8,9 +8,10 @@
 #include <sys/wait.h>
 #include <unistd.h>
 #include <lib/prototypes.h>
+#include "run_part.h"
 #include "shadowlog_internal.h"
 
-int run_part (char *script_path, char *name, char *action)
+int run_part (char *script_path, const char *name, const char *action)
 {
 	int pid;
 	int wait_status;
@@ -39,7 +40,7 @@ int run_part (char *script_path, char *name, char *action)
 	return (1);
 }
 
-int run_parts (char *directory, char *name, char *action)
+int run_parts (const char *directory, const char *name, const char *action)
 {
 	struct dirent **namelist;
 	int scanlist;
diff --git a/lib/run_part.h b/lib/run_part.h
index d3d80663..0b68dbfc 100644
--- a/lib/run_part.h
+++ b/lib/run_part.h
@@ -1,2 +1,2 @@
-int run_part (char *script_path, char *name, char *action);
-int run_parts (char *directory, char *name, char *action);
+int run_part (char *script_path, const char *name, const char *action);
+int run_parts (const char *directory, const char *name, const char *action);
diff --git a/src/useradd.c b/src/useradd.c
index 456b9de5..34376fa5 100644
--- a/src/useradd.c
+++ b/src/useradd.c
@@ -2492,7 +2492,7 @@ int main (int argc, char **argv)
 	    (!user_id || (user_id <= uid_max && user_id >= uid_min));
 #endif				/* ENABLE_SUBIDS */
 
-	if (run_parts ("/etc/shadow-maint/useradd-pre.d", (char*)user_name,
+	if (run_parts ("/etc/shadow-maint/useradd-pre.d", user_name,
 			"useradd")) {
 		exit(1);
 	}
@@ -2715,7 +2715,7 @@ int main (int argc, char **argv)
 		create_mail ();
 	}
 
-	if (run_parts ("/etc/shadow-maint/useradd-post.d", (char*)user_name,
+	if (run_parts ("/etc/shadow-maint/useradd-post.d", user_name,
 			"useradd")) {
 		exit(1);
 	}