diff --git a/programs/aes/CMakeLists.txt b/programs/aes/CMakeLists.txt
index 457a0fc26..81741020f 100644
--- a/programs/aes/CMakeLists.txt
+++ b/programs/aes/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(executables
diff --git a/programs/cipher/CMakeLists.txt b/programs/cipher/CMakeLists.txt
index c047dd69e..b497e8a48 100644
--- a/programs/cipher/CMakeLists.txt
+++ b/programs/cipher/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(executables
diff --git a/programs/fuzz/CMakeLists.txt b/programs/fuzz/CMakeLists.txt
index a0eba0fd0..97b8fd2eb 100644
--- a/programs/fuzz/CMakeLists.txt
+++ b/programs/fuzz/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(libs
diff --git a/programs/hash/CMakeLists.txt b/programs/hash/CMakeLists.txt
index 3d6989cca..504a4052f 100644
--- a/programs/hash/CMakeLists.txt
+++ b/programs/hash/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(executables
diff --git a/programs/pkey/CMakeLists.txt b/programs/pkey/CMakeLists.txt
index e2fb40402..2f55c6122 100644
--- a/programs/pkey/CMakeLists.txt
+++ b/programs/pkey/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(executables_mbedtls
diff --git a/programs/psa/CMakeLists.txt b/programs/psa/CMakeLists.txt
index d86f29e2c..dd1b1a2a8 100644
--- a/programs/psa/CMakeLists.txt
+++ b/programs/psa/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(executables
diff --git a/programs/random/CMakeLists.txt b/programs/random/CMakeLists.txt
index a4c99f561..c1184d118 100644
--- a/programs/random/CMakeLists.txt
+++ b/programs/random/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(executables
diff --git a/programs/ssl/CMakeLists.txt b/programs/ssl/CMakeLists.txt
index 8ffa85464..8047b9f15 100644
--- a/programs/ssl/CMakeLists.txt
+++ b/programs/ssl/CMakeLists.txt
@@ -1,4 +1,6 @@
 set(THREADS_USE_PTHREADS_WIN32 true)
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(libs
diff --git a/programs/test/CMakeLists.txt b/programs/test/CMakeLists.txt
index a7260452f..3709276f5 100644
--- a/programs/test/CMakeLists.txt
+++ b/programs/test/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(libs
diff --git a/programs/test/cmake_subproject/CMakeLists.txt b/programs/test/cmake_subproject/CMakeLists.txt
index dd23d6165..2f8ab2a3a 100644
--- a/programs/test/cmake_subproject/CMakeLists.txt
+++ b/programs/test/cmake_subproject/CMakeLists.txt
@@ -1,5 +1,7 @@
 cmake_minimum_required(VERSION 3.5.1)
 
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 # Test the target renaming support by adding a prefix to the targets built
diff --git a/programs/util/CMakeLists.txt b/programs/util/CMakeLists.txt
index 920f69e88..6a8659e9b 100644
--- a/programs/util/CMakeLists.txt
+++ b/programs/util/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(libs
diff --git a/programs/x509/CMakeLists.txt b/programs/x509/CMakeLists.txt
index c507de2a7..e41b4069e 100644
--- a/programs/x509/CMakeLists.txt
+++ b/programs/x509/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(libs
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 68bc57f5a..cb54ea408 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 find_package(Threads)
 
 set(libs