diff --git a/libs/spandsp/Makefile b/libs/spandsp/Makefile
index e326bc7..5993ba6 100644
--- a/libs/spandsp/Makefile
+++ b/libs/spandsp/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=spandsp
 PKG_VERSION:=0.0.6
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://www.soft-switch.org/downloads/spandsp
@@ -38,16 +38,16 @@ define Build/InstallDev
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libspandsp* $(1)/usr/lib/
 
 	$(INSTALL_DIR) $(1)/usr/include
-	$(CP) $(PKG_INSTALL_DIR)/usr/include/spandsp.h $(1)/usr/include/
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/include/spandsp.h $(1)/usr/include/
 
 	$(INSTALL_DIR) $(1)/usr/include/spandsp
-	$(CP) $(PKG_INSTALL_DIR)/usr/include/spandsp/*.h $(1)/usr/include/spandsp/
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/include/spandsp/*.h $(1)/usr/include/spandsp/
 
 	$(INSTALL_DIR) $(1)/usr/include/spandsp/private
-	$(CP) $(PKG_INSTALL_DIR)/usr/include/spandsp/private/*.h $(1)/usr/include/spandsp/private/
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/include/spandsp/private/*.h $(1)/usr/include/spandsp/private/
 
 	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/spandsp.pc $(1)/usr/lib/pkgconfig/
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/spandsp.pc $(1)/usr/lib/pkgconfig/
 endef
 
 define Package/libspandsp/install