diff --git a/src/openrct2-ui/drawing/engines/opengl/OpenGLAPI.cpp b/src/openrct2-ui/drawing/engines/opengl/OpenGLAPI.cpp
index 43f9ec7782..37c738c6b0 100644
--- a/src/openrct2-ui/drawing/engines/opengl/OpenGLAPI.cpp
+++ b/src/openrct2-ui/drawing/engines/opengl/OpenGLAPI.cpp
@@ -114,6 +114,7 @@ static const char * TryLoadAllProcAddresses()
     SetupOpenGLFunction(glVertexAttribPointer);
     SetupOpenGLFunction(glDrawArraysInstanced);
     SetupOpenGLFunction(glVertexAttribDivisor);
+    SetupOpenGLFunction(glBlendFuncSeparate);
 
     return nullptr;
 }
diff --git a/src/openrct2-ui/drawing/engines/opengl/OpenGLAPI.h b/src/openrct2-ui/drawing/engines/opengl/OpenGLAPI.h
index 35105981a3..246f67d844 100644
--- a/src/openrct2-ui/drawing/engines/opengl/OpenGLAPI.h
+++ b/src/openrct2-ui/drawing/engines/opengl/OpenGLAPI.h
@@ -176,6 +176,7 @@ GLAPI_DECL PFNGLVERTEXATTRIBIPOINTERPROC        glVertexAttribIPointer      GLAP
 GLAPI_DECL PFNGLVERTEXATTRIBPOINTERPROC         glVertexAttribPointer       GLAPI_SET;
 GLAPI_DECL PFNGLDRAWARRAYSINSTANCEDPROC         glDrawArraysInstanced       GLAPI_SET;
 GLAPI_DECL PFNGLVERTEXATTRIBDIVISORPROC         glVertexAttribDivisor       GLAPI_SET;
+GLAPI_DECL PFNGLBLENDFUNCSEPARATEPROC           glBlendFuncSeparate         GLAPI_SET;
 
 #endif /* OPENGL_NO_LINK */
 
diff --git a/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp b/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp
index 9f1c182a9c..8f11075e1b 100644
--- a/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp
+++ b/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp
@@ -186,7 +186,7 @@ public:
         _drawingContext->Initialise();
 
         glEnable(GL_BLEND);
-        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+        glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE);
 
         _copyFramebufferShader = new CopyFramebufferShader();
     }