diff --git a/criu/include/parasite-vdso.h b/criu/include/parasite-vdso.h
index efb282a60..8f7aaf9e0 100644
--- a/criu/include/parasite-vdso.h
+++ b/criu/include/parasite-vdso.h
@@ -81,7 +81,7 @@ static inline bool is_vdso_mark(void *addr)
 
 extern int vdso_do_park(struct vdso_symtable *sym_rt, unsigned long park_at, unsigned long park_size);
 extern int vdso_map_compat(unsigned long map_at);
-extern int vdso_proxify(char *who, struct vdso_symtable *sym_rt,
+extern int vdso_proxify(struct vdso_symtable *sym_rt,
 			unsigned long vdso_rt_parked_at, size_t index,
 			VmaEntry *vmas, size_t nr_vmas, bool compat_vdso);
 
diff --git a/criu/pie/parasite-vdso.c b/criu/pie/parasite-vdso.c
index df1a985ea..e55c23a07 100644
--- a/criu/pie/parasite-vdso.c
+++ b/criu/pie/parasite-vdso.c
@@ -103,7 +103,7 @@ int __vdso_fill_symtable(uintptr_t mem, size_t size,
 }
 #endif
 
-int vdso_proxify(char *who, struct vdso_symtable *sym_rt,
+int vdso_proxify(struct vdso_symtable *sym_rt,
 		 unsigned long vdso_rt_parked_at, size_t index,
 		 VmaEntry *vmas, size_t nr_vmas, bool compat_vdso)
 {
@@ -197,14 +197,14 @@ int vdso_proxify(char *who, struct vdso_symtable *sym_rt,
 
 		if (sys_munmap((void *)(uintptr_t)vma_vdso->start,
 					vma_entry_len(vma_vdso))) {
-			pr_err("Failed to unmap %s\n", who);
+			pr_err("Failed to unmap dumpee\n");
 			return -1;
 		}
 
 		if (vma_vvar) {
 			if (sys_munmap((void *)(uintptr_t)vma_vvar->start,
 						vma_entry_len(vma_vvar))) {
-				pr_err("Failed to unmap %s\n", who);
+				pr_err("Failed to unmap dumpee\n");
 				return -1;
 			}
 
diff --git a/criu/pie/restorer.c b/criu/pie/restorer.c
index ccf9dabe5..9ead57199 100644
--- a/criu/pie/restorer.c
+++ b/criu/pie/restorer.c
@@ -1188,7 +1188,7 @@ long __export_restore_task(struct task_restore_args *args)
 	for (i = 0; i < args->vmas_n; i++) {
 		if (vma_entry_is(&args->vmas[i], VMA_AREA_VDSO) ||
 		    vma_entry_is(&args->vmas[i], VMA_AREA_VVAR)) {
-			if (vdso_proxify("dumpee", &args->vdso_sym_rt,
+			if (vdso_proxify(&args->vdso_sym_rt,
 					 args->vdso_rt_parked_at,
 					 i, args->vmas, args->vmas_n,
 					 args->compatible_mode))