diff --git a/lib/libimhex/source/ui/imgui_imhex_extensions.cpp b/lib/libimhex/source/ui/imgui_imhex_extensions.cpp
index 1547ca979..4bfc0de29 100644
--- a/lib/libimhex/source/ui/imgui_imhex_extensions.cpp
+++ b/lib/libimhex/source/ui/imgui_imhex_extensions.cpp
@@ -1,8 +1,11 @@
 #include <hex/ui/imgui_imhex_extensions.h>
 
+#if defined(OS_WEB)
+    #define IMGL3W_IMPL
+#endif
+
 #include <imgui.h>
 #include <imgui_internal.h>
-#define IMGL3W_IMPL
 #include <imgui_impl_opengl3_loader.h>
 #undef IMGUI_DEFINE_MATH_OPERATORS