diff --git a/.circleci/config.yml b/.circleci/config.yml
index 89408c4c..578eef48 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -74,6 +74,7 @@ jobs:
           name: Run tests
           command: |
              if << parameters.OQS_PROVIDER_BUILD_STATIC >> ; then
+               test -f _build/lib/oqsprovider.a
                ctest --test-dir _build/
              else
                ./scripts/runtests.sh -V
@@ -98,6 +99,7 @@ jobs:
           name: Run tests (-DNOPUBKEY_IN_PRIVKEY=ON)
           command: |
              if << parameters.OQS_PROVIDER_BUILD_STATIC >> ; then
+               test -f _build/lib/oqsprovider.a
                ctest --test-dir _build/
              else
                ./scripts/runtests.sh -V
@@ -175,6 +177,7 @@ jobs:
           name: Run tests
           command: |
              if << parameters.OQS_PROVIDER_BUILD_STATIC >> ; then
+               test -f _build/lib/oqsprovider.a
                ctest --test-dir _build/ --output-on-failure
              else
                ./scripts/runtests.sh -V
@@ -191,6 +194,7 @@ jobs:
           name: Run tests
           command: |
              if << parameters.OQS_PROVIDER_BUILD_STATIC >> ; then
+               test -f _build/lib/oqsprovider.a
                ctest --test-dir _build/ --output-on-failure
              else
                ./scripts/runtests.sh -V
diff --git a/oqsprov/CMakeLists.txt b/oqsprov/CMakeLists.txt
index 9bc7870f..93ba12f3 100644
--- a/oqsprov/CMakeLists.txt
+++ b/oqsprov/CMakeLists.txt
@@ -58,24 +58,26 @@ set_target_properties(oqsprovider
     # For Windows DLLs
     RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
 
-if (APPLE)
-  # OpenSSL looks for `.dylib` files on XNU-based platforms.
-  # Because `MODULE` writes to a `.so` file by default, we must explicitely
-  # set the suffix here.
-  set_target_properties(oqsprovider
-    PROPERTIES
-    SUFFIX ".dylib"
-  )
-endif()
+if (NOT OQS_PROVIDER_BUILD_STATIC)
+  if (APPLE)
+    # OpenSSL looks for `.dylib` files on XNU-based platforms.
+    # Because `MODULE` writes to a `.so` file by default, we must explicitely
+    # set the suffix here.
+    set_target_properties(oqsprovider
+      PROPERTIES
+      SUFFIX ".dylib"
+    )
+  endif()
 
-if (CYGWIN OR MSVC)
-  # OpenSSL looks for `.dll` files on Windows platforms.
-  # Because `MODULE` writes to a `.so` file by default, we must explicitely
-  # set the suffix here.
-  set_target_properties(oqsprovider
-    PROPERTIES
-    SUFFIX ".dll"
-  )
+  if (CYGWIN OR MSVC)
+    # OpenSSL looks for `.dll` files on Windows platforms.
+    # Because `MODULE` writes to a `.so` file by default, we must explicitely
+    # set the suffix here.
+    set_target_properties(oqsprovider
+      PROPERTIES
+      SUFFIX ".dll"
+    )
+  endif()
 endif()
 
 target_link_libraries(oqsprovider PUBLIC OQS::oqs ${OPENSSL_CRYPTO_LIBRARY} ${OQS_ADDL_SOCKET_LIBS})