diff --git a/Makefile b/Makefile
index e346bc8ad..18c59a8da 100644
--- a/Makefile
+++ b/Makefile
@@ -113,6 +113,7 @@ endif
 ifdef SHIP_SHARED_STL
 	@echo "[*] Install C++ runtime..."
 	cp -fL $(SHARED_STL_LIB) $(INSTALL_DIR)/koreader/libs/
+	chmod 755 $(INSTALL_DIR)/koreader/libs/$(notdir $(SHARED_STL_LIB))
 	$(STRIP) --strip-unneeded $(INSTALL_DIR)/koreader/libs/$(notdir $(SHARED_STL_LIB))
 endif
 	@echo "[*] Install plugins"