diff --git a/src/mir_init.c b/src/mir_init.c
index 7f19b60d..c2de5620 100644
--- a/src/mir_init.c
+++ b/src/mir_init.c
@@ -90,6 +90,11 @@ const char* _glfwPlatformGetVersionString(void)
     const char* version = _GLFW_VERSION_NUMBER " Mir EGL"
 #if defined(_POSIX_TIMERS) && defined(_POSIX_MONOTONIC_CLOCK)
         " clock_gettime"
+#else
+        " gettimeofday"
+#endif
+#if defined(__linux__)
+        " /dev/js"
 #endif
 #if defined(_GLFW_BUILD_DLL)
         " shared"
diff --git a/src/wl_init.c b/src/wl_init.c
index 72ce18eb..280608dd 100644
--- a/src/wl_init.c
+++ b/src/wl_init.c
@@ -620,9 +620,14 @@ void _glfwPlatformTerminate(void)
 
 const char* _glfwPlatformGetVersionString(void)
 {
-    const char* version = _GLFW_VERSION_NUMBER " Wayland EGL "
+    const char* version = _GLFW_VERSION_NUMBER " Wayland EGL"
 #if defined(_POSIX_TIMERS) && defined(_POSIX_MONOTONIC_CLOCK)
         " clock_gettime"
+#else
+        " gettimeofday"
+#endif
+#if defined(__linux__)
+        " /dev/js"
 #endif
 #if defined(_GLFW_BUILD_DLL)
         " shared"
diff --git a/src/x11_init.c b/src/x11_init.c
index 9c42864c..ea194c9b 100644
--- a/src/x11_init.c
+++ b/src/x11_init.c
@@ -796,6 +796,8 @@ const char* _glfwPlatformGetVersionString(void)
 #endif
 #if defined(_POSIX_TIMERS) && defined(_POSIX_MONOTONIC_CLOCK)
         " clock_gettime"
+#else
+        " gettimeofday"
 #endif
 #if defined(__linux__)
         " /dev/js"