diff --git a/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp b/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
index cda13b7a..b4ad8cc5 100644
--- a/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
+++ b/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
@@ -18613,16 +18613,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
                 Bool YuvTarget = false;
             };
 
-            Bool HasExtensionWord(const char* list, const char* word) {
-                if (list == nullptr) return false;
-                const SizeT n = std::strlen(word);
-                for (const char* at = std::strstr(list, word); at != nullptr; at = std::strstr(at + 1, word)) {
-                    const Bool startOk = at == list || at[-1] == ' ';
-                    const Bool endOk = at[n] == '\0' || at[n] == ' ';
-                    if (startOk && endOk) return true;
-                }
-                return false;
-            }
+            using MG_Util::BackendLoader::HasExtensionWord;
 
             // None of these is in the loader's tables, and eglGetProcAddress hands back live-looking
             // stubs for entry points a driver lacks, so the extension strings decide first. Resolved
diff --git a/MobileGL/MG_Backend/DirectGLES/Managers.cpp b/MobileGL/MG_Backend/DirectGLES/Managers.cpp
index 649d7ff7..83d598cd 100644
--- a/MobileGL/MG_Backend/DirectGLES/Managers.cpp
+++ b/MobileGL/MG_Backend/DirectGLES/Managers.cpp
@@ -2898,16 +2898,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
                 kT0MapReadBit | kT0MapWriteBit | kMapPersistentBit | kMapCoherentBit | kDynamicStorageBit;
             constexpr GLbitfield kT0MapFlags = kT0MapReadBit | kT0MapWriteBit | kMapPersistentBit | kMapCoherentBit;
 
-            Bool HasExtensionWord(const char* list, const char* word) {
-                if (list == nullptr) return false;
-                const SizeT n = std::strlen(word);
-                for (const char* at = std::strstr(list, word); at != nullptr; at = std::strstr(at + 1, word)) {
-                    const Bool startOk = at == list || at[-1] == ' ';
-                    const Bool endOk = at[n] == '\0' || at[n] == ' ';
-                    if (startOk && endOk) return true;
-                }
-                return false;
-            }
+            using MG_Util::BackendLoader::HasExtensionWord;
 
             Bool ResolveT0EntryPoints(String& why) {
                 if (g_t0GetNativeClientBuffer != nullptr && g_t0BufferStorageExternal != nullptr) return true;
diff --git a/MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.cpp b/MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.cpp
index 302e1f96..7fe4fc73 100644
--- a/MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.cpp
+++ b/MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.cpp
@@ -21,6 +21,17 @@
 #endif
 
 namespace MobileGL::MG_Util::BackendLoader {
+    Bool HasExtensionWord(const char* list, const char* word) {
+        if (list == nullptr || word == nullptr || *word == '\0') return false;
+        const SizeT n = std::strlen(word);
+        for (const char* at = std::strstr(list, word); at != nullptr; at = std::strstr(at + 1, word)) {
+            const Bool startOk = at == list || at[-1] == ' ';
+            const Bool endOk = at[n] == '\0' || at[n] == ' ';
+            if (startOk && endOk) return true;
+        }
+        return false;
+    }
+
     static Bool UseAngle() {
         return MG_Config::Features.EsprytUseAngle;
     }
diff --git a/MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.h b/MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.h
index 4ecb0065..838b4495 100644
--- a/MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.h
+++ b/MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.h
@@ -1364,6 +1364,8 @@ namespace MobileGL {
     } // namespace MG_External
 
     namespace MG_Util::BackendLoader {
+        // Match a complete name in a space-separated GLES/EGL extension string.
+        Bool HasExtensionWord(const char* list, const char* word);
         void AcquireGLESFunctions(MG_External::GLESFunctionsTable& funcs,
                                   MG_External::EGL::eglGetProcAddress_PTR procAddress);
         void AcquireEGLFunctions(MG_External::EGLFunctionsTable& funcs);