diff --git a/GNUmakefile b/GNUmakefile
index f75109b..708fd35 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -20,8 +20,8 @@ CFLAGS=-pipe -Wall -O2 -fomit-frame-pointer
 
 path = $(subst :, ,$(PATH))
 diet_path = $(foreach dir,$(path),$(wildcard $(dir)/diet))
-ifneq ($(strip $(diet_path)),)
-ifeq ($(wildcard /opt/diet/bin/diet),/opt/diet/bin/diet)
+ifeq ($(strip $(diet_path)),)
+ifneq ($(wildcard /opt/diet/bin/diet),)
 DIET=/opt/diet/bin/diet
 else
 DIET=