diff --git a/README.md b/README.md
index b144659..c6946cf 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,8 @@
 Tabletop Library is a tool for viewing and editing collections of pdf files. I use it to organize PDFs for tabletop games.
 
 I mostly built this to learn PyQt5 and surrounding build systems but it turned out actually useful.
+
+### Instructions
+It's important that you don't use quotes when you call ./configure
+`. ./configure --prefix /usr/local --libdir /lib64 && make && sudo make install`
+
diff --git a/configure b/configure
index 92ac8ed..75630d5 100755
--- a/configure
+++ b/configure
@@ -6,7 +6,6 @@ do
 # specify with --prefix "/whatever"
         --prefix)
         export PREFIX="$2"
-        sed "s#PREFIX := /usr/local#PREFIX := $2#g" Makefile | tee Makefile > /dev/null
         shift # Remove argument name from processing
         shift # Remove argument value from processing
         ;;
@@ -14,8 +13,7 @@ do
 # specify with --libdir "/libwhatver"
         --libdir)
         export LIBDIR="$2"
-        sed "s#LIBDIR := /lib#LIBDIR := $2#g" Makefile | tee Makefile > /dev/null
-        sed "s#LIB_DIR = [\']/lib[\']#LIB_DIR = \'$2\'#g" app.py | tee app.py > /dev/null
+        sed "s#LIB_DIR = [\']/lib[\']#LIB_DIR = \'$2\'#g" app.py | tee app.py
         shift
         shift
         ;;