diff --git a/main.sh b/main.sh
index 27f98b68..59221380 100755
--- a/main.sh
+++ b/main.sh
@@ -443,7 +443,7 @@ case "$(uname -s)" in
   Linux)
     host_os=linux
     ldd_version=$(ldd --version 2>&1 || true)
-    if grep -Fq musl <<<"${ldd_version}"; then
+    if [[ "${ldd_version}" == *'musl'* ]]; then
       host_env=musl
     else
       host_env=gnu
diff --git a/tools/ci/tool-list.sh b/tools/ci/tool-list.sh
index 7174f3bd..239e3779 100755
--- a/tools/ci/tool-list.sh
+++ b/tools/ci/tool-list.sh
@@ -68,7 +68,7 @@ case "$(uname -s)" in
   Linux)
     host_os=linux
     ldd_version=$(ldd --version 2>&1 || true)
-    if grep -Fq musl <<<"${ldd_version}"; then
+    if [[ "${ldd_version}" == *'musl'* ]]; then
       incompat_tools+=("${musl_incompat[@]}")
     else
       host_glibc_version=$(grep -E "GLIBC|GNU libc" <<<"${ldd_version}" | sed "s/.* //g")