diff --git a/Makefile b/Makefile
index 051dbb6..7e2e589 100644
--- a/Makefile
+++ b/Makefile
@@ -41,7 +41,7 @@ temp-pc:
 	${SED} "s#/include/libgovarnam##g" govarnam.pc
 	${SED} "s#/lib\$$##g" govarnam.pc
 
-install-script:
+install.sh: install.sh.in
 	cp install.sh.in install.sh
 	${SED} "s#@INSTALL_PREFIX@#${INSTALL_PREFIX}#g" install.sh
 	${SED} "s#@VERSION@#${VERSION}#g" install.sh
@@ -49,7 +49,8 @@ install-script:
 	${SED} "s#@SO_NAME@#${SO_NAME}#g" install.sh
 	chmod +x install.sh
 
-install:
+.PHONY: install
+install: install.sh
 	./install.sh install
 
 .PHONY: uninstall