diff --git a/shared/platform.h b/shared/platform.h
index ff640b54..364ce5aa 100644
--- a/shared/platform.h
+++ b/shared/platform.h
@@ -55,8 +55,9 @@ weston_platform_get_egl_proc_address(const char *address)
 {
 	const char *extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
 
-	if (strstr(extensions, "EGL_EXT_platform_wayland")
-	    || strstr(extensions, "EGL_KHR_platform_wayland")) {
+	if (extensions
+	    && (strstr(extensions, "EGL_EXT_platform_wayland")
+	        || strstr(extensions, "EGL_KHR_platform_wayland"))) {
 		return (void *) eglGetProcAddress(address);
 	}