diff --git a/commands/flex-2.5.4/Makefile.in b/commands/flex-2.5.4/Makefile.in
index 97ea9bd4e..5bd458fe1 100644
--- a/commands/flex-2.5.4/Makefile.in
+++ b/commands/flex-2.5.4/Makefile.in
@@ -94,7 +94,7 @@ all: $(FLEX)
 
 $(FLEX): .bootstrap $(OBJECTS) $(FLEXLIB)
 	$(CC) $(CFLAGS) -o $(FLEX) $(LDFLAGS) $(OBJECTS) $(FLEXLIB) $(LIBS)
-	install -S256k $(FLEX)
+	/usr/bin/install -S256k $(FLEX)
 
 .bootstrap: initscan.c
 	@rm -f scan.c