diff --git a/scripts/install-ruby b/scripts/install-ruby
index a8fb88a..368dda4 100755
--- a/scripts/install-ruby
+++ b/scripts/install-ruby
@@ -38,8 +38,8 @@ if [[ -d "/patches/ruby/$RUBY_VERSION" ]]; then
 fi
 
 # Compile
-./configure --enable-shared --disable-install-doc --disable-install-rdoc --disable-install-capi
-CFLAGS=-fno-omit-frame-pointer make install -j $(nproc)
+./configure --enable-shared --disable-install-doc --disable-install-rdoc --disable-install-capi CFLAGS='-fno-omit-frame-pointer'
+make install -j $(nproc)
 
 # Cleanup
 cd /