diff --git a/src/mapi/glapi/gen/ARB_draw_buffers_blend.xml b/src/mapi/glapi/gen/ARB_draw_buffers_blend.xml
index 4d44adf1de9..1a44f38d16a 100644
--- a/src/mapi/glapi/gen/ARB_draw_buffers_blend.xml
+++ b/src/mapi/glapi/gen/ARB_draw_buffers_blend.xml
@@ -13,7 +13,7 @@
         <param name="mode" type="GLenum"/>
     </function>
 
-    <function name="BlendEquationSeparateiARB">
+    <function name="BlendEquationSeparateiARB" no_error="true">
         <param name="buf" type="GLuint"/>
         <param name="modeRGB" type="GLenum"/>
         <param name="modeA" type="GLenum"/>
diff --git a/src/mesa/main/blend.c b/src/mesa/main/blend.c
index e91c14aeb9d..8c763ed34e5 100644
--- a/src/mesa/main/blend.c
+++ b/src/mesa/main/blend.c
@@ -615,6 +615,15 @@ blend_equation_separatei(struct gl_context *ctx, GLuint buf, GLenum modeRGB,
 }
 
 
+void GLAPIENTRY
+_mesa_BlendEquationSeparateiARB_no_error(GLuint buf, GLenum modeRGB,
+                                         GLenum modeA)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   blend_equation_separatei(ctx, buf, modeRGB, modeA);
+}
+
+
 /**
  * Set separate blend equations for one color buffer/target.
  */
diff --git a/src/mesa/main/blend.h b/src/mesa/main/blend.h
index 199345df600..54b9ce6e1b1 100644
--- a/src/mesa/main/blend.h
+++ b/src/mesa/main/blend.h
@@ -76,6 +76,9 @@ extern void GLAPIENTRY
 _mesa_BlendEquationSeparate( GLenum modeRGB, GLenum modeA );
 
 
+extern void GLAPIENTRY
+_mesa_BlendEquationSeparateiARB_no_error(GLuint buf, GLenum modeRGB,
+                                         GLenum modeA);
 extern void GLAPIENTRY
 _mesa_BlendEquationSeparateiARB(GLuint buf, GLenum modeRGB, GLenum modeA);