diff --git a/README.md b/README.md
index 74fbc34c..b0f30ade 100644
--- a/README.md
+++ b/README.md
@@ -132,6 +132,7 @@ information on what to include when reporting a bug.
 - [Cocoa] Bugfix: Running in AppSandbox would emit warnings (#816,#882)
 - [Cocoa] Bugfix: Windows created after the first were not cascaded (#195)
 - [EGL] Added support for `EGL_KHR_get_all_proc_addresses` (#871)
+- [EGL] Bugfix: The test for `EGL_RGB_BUFFER` was invalid
 
 
 ## Contact
diff --git a/src/egl_context.c b/src/egl_context.c
index 9640cc6f..368cba96 100644
--- a/src/egl_context.c
+++ b/src/egl_context.c
@@ -113,7 +113,7 @@ static GLFWbool chooseEGLConfig(const _GLFWctxconfig* ctxconfig,
         _GLFWfbconfig* u = usableConfigs + usableCount;
 
         // Only consider RGB(A) EGLConfigs
-        if (!(getEGLConfigAttrib(n, EGL_COLOR_BUFFER_TYPE) & EGL_RGB_BUFFER))
+        if (getEGLConfigAttrib(n, EGL_COLOR_BUFFER_TYPE) != EGL_RGB_BUFFER)
             continue;
 
         // Only consider window EGLConfigs