diff --git a/bootstrap-common.sh b/bootstrap-common.sh
index d465608..9678eff 100755
--- a/bootstrap-common.sh
+++ b/bootstrap-common.sh
@@ -403,7 +403,7 @@ fi
 # ---------------------------------------------------------------------------------------------------------------------
 # libsamplerate
 
-if [ -z "${PAWPAW_SKIP_SAMPLERATE}" ] && [ "${PAWPAW_SKIP_SAMPLERATE}" -eq 1 ]; then
+if [ -n "${PAWPAW_SKIP_SAMPLERATE}" ] && [ "${PAWPAW_SKIP_SAMPLERATE}" -eq 1 ]; then
 
 LIBSAMPLERATE_EXTRAFLAGS="--disable-fftw"