diff --git a/pkgs/stdenv/generic/setup.sh b/pkgs/stdenv/generic/setup.sh
index dc6c765353f7..7d25472993c5 100644
--- a/pkgs/stdenv/generic/setup.sh
+++ b/pkgs/stdenv/generic/setup.sh
@@ -644,14 +644,14 @@ configurePhase() {
 
     # Add --disable-dependency-tracking to speed up some builds.
     if [ -z "$dontAddDisableDepTrack" ]; then
-        if grep -q dependency-tracking $configureScript; then
+        if grep -q dependency-tracking "$configureScript"; then
             configureFlags="--disable-dependency-tracking $configureFlags"
         fi
     fi
 
     # By default, disable static builds.
     if [ -z "$dontDisableStatic" ]; then
-        if grep -q enable-static $configureScript; then
+        if grep -q enable-static "$configureScript"; then
             configureFlags="--disable-static $configureFlags"
         fi
     fi