diff --git a/scripts/ocsp-stapling.test b/scripts/ocsp-stapling.test
index e8c89de9c..a7e535fbf 100755
--- a/scripts/ocsp-stapling.test
+++ b/scripts/ocsp-stapling.test
@@ -387,7 +387,7 @@ generate_port() {
     # Generate a random port number
     #-------------------------------------------------------------------------#
 
-    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+    if [[ "$OSTYPE" == "linux"* ]]; then
         port=$(($(od -An -N2 /dev/urandom) % (65535-49512) + 49512))
     elif [[ "$OSTYPE" == "darwin"* ]]; then
         port=$(($(od -An -N2 /dev/random) % (65535-49512) + 49512))
diff --git a/scripts/ocsp-stapling2.test b/scripts/ocsp-stapling2.test
index 3425f5d73..0ec37b25a 100755
--- a/scripts/ocsp-stapling2.test
+++ b/scripts/ocsp-stapling2.test
@@ -452,7 +452,7 @@ generate_port() {
     # Generate a random port number
     #-------------------------------------------------------------------------#
 
-    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+    if [[ "$OSTYPE" == "linux"* ]]; then
         port=$(($(od -An -N2 /dev/urandom) % (65535-49512) + 49512))
     elif [[ "$OSTYPE" == "darwin"* ]]; then
         port=$(($(od -An -N2 /dev/random) % (65535-49512) + 49512))
diff --git a/scripts/openssl.test b/scripts/openssl.test
index 5298dc4aa..193fbfeb3 100755
--- a/scripts/openssl.test
+++ b/scripts/openssl.test
@@ -36,7 +36,7 @@ generate_port() {
     # Generate a random port number
     #-------------------------------------------------------------------------#
 
-    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+    if [[ "$OSTYPE" == "linux"* ]]; then
         port=$(($(od -An -N2 /dev/urandom) % (65535-49512) + 49512))
     elif [[ "$OSTYPE" == "darwin"* ]]; then
         port=$(($(od -An -N2 /dev/random) % (65535-49512) + 49512))
diff --git a/scripts/openssl_srtp.test b/scripts/openssl_srtp.test
index 1e47da972..500ea5c14 100755
--- a/scripts/openssl_srtp.test
+++ b/scripts/openssl_srtp.test
@@ -19,7 +19,7 @@ generate_port() {
     # Generate a random port number
     #-------------------------------------------------------------------------#
 
-    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+    if [[ "$OSTYPE" == "linux"* ]]; then
         port=$(($(od -An -N2 /dev/urandom) % (65535-49512) + 49512))
     elif [[ "$OSTYPE" == "darwin"* ]]; then
         port=$(($(od -An -N2 /dev/random) % (65535-49512) + 49512))