diff --git a/libpkgconf/cache.c b/libpkgconf/cache.c
index 64246d5..ca6fc0f 100644
--- a/libpkgconf/cache.c
+++ b/libpkgconf/cache.c
@@ -18,14 +18,14 @@
 static pkgconf_list_t pkg_cache = PKGCONF_LIST_INITIALIZER;
 
 /*
- * pkg_cache_lookup(id)
+ * pkgconf_cache_lookup(id)
  *
  * looks up a package in the cache given an 'id' atom,
  * such as 'gtk+-3.0' and returns the already loaded version
  * if present.
  */
 pkg_t *
-pkg_cache_lookup(const char *id)
+pkgconf_cache_lookup(const char *id)
 {
 	pkgconf_node_t *node;
 
@@ -41,13 +41,13 @@ pkg_cache_lookup(const char *id)
 }
 
 /*
- * pkg_cache_add(pkg)
+ * pkgconf_cache_add(pkg)
  *
  * adds an entry for the package to the package cache.
  * the cache entry must be removed if the package is freed.
  */
 void
-pkg_cache_add(pkg_t *pkg)
+pkgconf_cache_add(pkg_t *pkg)
 {
 	if (pkg == NULL)
 		return;
@@ -58,12 +58,12 @@ pkg_cache_add(pkg_t *pkg)
 }
 
 /*
- * pkg_cache_remove(pkg)
+ * pkgconf_cache_remove(pkg)
  *
  * deletes a package from the cache entry.
  */
 void
-pkg_cache_remove(pkg_t *pkg)
+pkgconf_cache_remove(pkg_t *pkg)
 {
 	if (pkg == NULL)
 		return;
@@ -72,7 +72,7 @@ pkg_cache_remove(pkg_t *pkg)
 }
 
 void
-pkg_cache_free(void)
+pkgconf_cache_free(void)
 {
 	pkgconf_node_t *iter, *iter2;
 
diff --git a/libpkgconf/libpkgconf.h b/libpkgconf/libpkgconf.h
index 4d8fcad..9b09773 100644
--- a/libpkgconf/libpkgconf.h
+++ b/libpkgconf/libpkgconf.h
@@ -189,9 +189,9 @@ bool pkg_queue_apply(pkgconf_list_t *list, pkg_queue_apply_func_t func, int maxd
 bool pkg_queue_validate(pkgconf_list_t *list, int maxdepth, unsigned int flags);
 
 /* cache.c */
-pkg_t *pkg_cache_lookup(const char *id);
-void pkg_cache_add(pkg_t *pkg);
-void pkg_cache_remove(pkg_t *pkg);
-void pkg_cache_free(void);
+pkg_t *pkgconf_cache_lookup(const char *id);
+void pkgconf_cache_add(pkg_t *pkg);
+void pkgconf_cache_remove(pkg_t *pkg);
+void pkgconf_cache_free(void);
 
 #endif
diff --git a/libpkgconf/pkg.c b/libpkgconf/pkg.c
index 40a236a..aa9fb25 100644
--- a/libpkgconf/pkg.c
+++ b/libpkgconf/pkg.c
@@ -281,7 +281,7 @@ pkg_free(pkg_t *pkg)
 	if (pkg == NULL || pkg->flags & PKG_PROPF_VIRTUAL)
 		return;
 
-	pkg_cache_remove(pkg);
+	pkgconf_cache_remove(pkg);
 
 	pkgconf_dependency_free(&pkg->requires);
 	pkgconf_dependency_free(&pkg->requires_private);
@@ -474,7 +474,7 @@ pkg_find(const char *name, unsigned int flags)
 	/* check cache */
 	if (!(flags & PKGF_NO_CACHE))
 	{
-		if ((pkg = pkg_cache_lookup(name)) != NULL)
+		if ((pkg = pkgconf_cache_lookup(name)) != NULL)
 		{
 			pkg->flags |= PKG_PROPF_CACHED;
 			return pkg;
@@ -498,7 +498,7 @@ pkg_find(const char *name, unsigned int flags)
 #endif
 
 out:
-	pkg_cache_add(pkg);
+	pkgconf_cache_add(pkg);
 
 	return pkg;
 }
diff --git a/main.c b/main.c
index 25f29ee..71fdd7d 100644
--- a/main.c
+++ b/main.c
@@ -1003,7 +1003,7 @@ out_println:
 
 out:
 	pkgconf_tuple_free_global();
-	pkg_cache_free();
+	pkgconf_cache_free();
 
 	return ret;
 }