diff --git a/Makefile b/Makefile
index f43a9a9..25ae108 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 BIN 	:= "nexclamation"
 SYMLINK	:= "n!"
 COMPL	:= "completion"
-TMP		:= "./.installation_prefix"
+PREF	:= "./.installation_prefix"
 
 all:
 	@echo Nothing to do. Available targets: install, uninstall, set-prefix
@@ -12,7 +12,7 @@ all:
 	@echo make PREFIX=/your/path install
 
 install: set-prefix
-	$(eval PREFIX := $(shell cat $(TMP)))
+	$(eval PREFIX := $(shell cat $(PREF)))
 	@echo Installation PREFIX $(PREFIX)
 	COMPDIR="$(PREFIX)/share/bash-completion/completions"; \
 	mkdir -p "$(PREFIX)" && \
@@ -23,7 +23,7 @@ install: set-prefix
 	@echo Successfully installed
 
 uninstall:
-	$(eval PREFIX := $(shell cat $(TMP)))
+	$(eval PREFIX := $(shell cat $(PREF)))
 	@echo Installation PREFIX $(PREFIX)
 	COMPDIR="$(PREFIX)/share/bash-completion/completions"; \
 	rm -f "$(PREFIX)/bin/$(BIN)" && \
@@ -33,5 +33,5 @@ uninstall:
 
 set-prefix:
 	if [ "$$UID" == "0" ]; then \
-	echo $${PREFIX:-/usr/local} > $(TMP); else \
-	echo $${PREFIX:-$$HOME/.local} > $(TMP); fi;
+	echo $${PREFIX:-/usr/local} > $(PREF); else \
+	echo $${PREFIX:-$$HOME/.local} > $(PREF); fi;