diff --git a/include/ll_map.h b/include/ll_map.h
index fb708191..511fe00b 100644
--- a/include/ll_map.h
+++ b/include/ll_map.h
@@ -12,6 +12,5 @@ int ll_index_to_flags(unsigned idx);
 unsigned namehash(const char *str);
 
 const char *ll_idx_n2a(unsigned int idx);
-unsigned int ll_idx_a2n(const char *name);
 
 #endif /* __LL_MAP_H__ */
diff --git a/lib/ll_map.c b/lib/ll_map.c
index 1b4095a7..1ab8ef07 100644
--- a/lib/ll_map.c
+++ b/lib/ll_map.c
@@ -143,7 +143,7 @@ const char *ll_idx_n2a(unsigned int idx)
 	return buf;
 }
 
-unsigned int ll_idx_a2n(const char *name)
+static unsigned int ll_idx_a2n(const char *name)
 {
 	unsigned int idx;