diff --git a/README.md b/README.md
index 72d5c07..fee184e 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ int main()
 ```
 
 </td></tr>
-<tr><td>OS</td><td>&#9989; Windows<br/>&#9989; Linux<br/>&#9989; macOS<br/>&#9989; Android<br/>&#9989; iOS<br/>&#9989; FreeBSD<br/>&#9989; NetBSD<br/>&#9989; OpenBSD<br/>&#9989; SyterKit</td></tr>
+<tr><td>OS</td><td>&#9989; Windows<br/>&#9989; Linux<br/>&#9989; macOS<br/>&#9989; Android<br/>&#9989; iOS<br/>&#9989; FreeBSD<br/>&#9989; NetBSD<br/>&#9989; OpenBSD<br/>&#9989; DragonflyBSD<br/>&#9989; SyterKit</td></tr>
 <tr><td>Compiler</td><td>&#9989; GCC<br/>&#9989; Clang<br/>&#9989; MSVC<br/>&#9989; MinGW</td></tr>
 </table>
 
diff --git a/ruapu.h b/ruapu.h
index 5860b75..9981f07 100644
--- a/ruapu.h
+++ b/ruapu.h
@@ -71,7 +71,7 @@ static int ruapu_detect_isa(const void* some_inst)
 }
 #endif // WINAPI_FAMILY == WINAPI_FAMILY_APP
 
-#elif defined __ANDROID__ || defined __linux__ || defined __APPLE__ || defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__
+#elif defined __ANDROID__ || defined __linux__ || defined __APPLE__ || defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ || defined __DragonFly__
 #include <signal.h>
 #include <setjmp.h>
 #include <string.h>
@@ -131,7 +131,7 @@ static int ruapu_detect_isa(ruapu_some_inst some_inst)
     return g_ruapu_sigill_caught ? 0 : 1;
 }
 
-#endif // defined _WIN32 || defined __ANDROID__ || defined __linux__ || defined __APPLE__ || defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ || defined __SYTERKIT__
+#endif // defined _WIN32 || defined __ANDROID__ || defined __linux__ || defined __APPLE__ || defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ || defined __DragonFly__ || defined __SYTERKIT__
 
 #if defined _WIN32
 
@@ -433,7 +433,7 @@ static void ruapu_detect_openrisc_isa()
 
 void ruapu_init()
 {
-#if defined _WIN32 || defined __ANDROID__ || defined __linux__ || defined __APPLE__ || defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ || defined __SYTERKIT__
+#if defined _WIN32 || defined __ANDROID__ || defined __linux__ || defined __APPLE__ || defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ || defined __DragonFly__ || defined __SYTERKIT__
     size_t j = 0;
     for (size_t i = 0; i < sizeof(g_ruapu_isa_map) / sizeof(g_ruapu_isa_map[0]); i++)
     {