diff --git a/src/config/ConfigManager.cpp b/src/config/ConfigManager.cpp
index f5294a8c..5bbcfc00 100644
--- a/src/config/ConfigManager.cpp
+++ b/src/config/ConfigManager.cpp
@@ -688,6 +688,7 @@ void CConfigManager::handleWindowRule(const std::string& command, const std::str
         && RULE != "nofocus"
         && RULE != "noblur"
         && RULE != "center"
+        && RULE != "opaque"
         && RULE != "fullscreen"
         && RULE.find("animation") != 0
         && RULE.find("rounding") != 0
diff --git a/src/events/Windows.cpp b/src/events/Windows.cpp
index 7d3c259a..ff4b147f 100644
--- a/src/events/Windows.cpp
+++ b/src/events/Windows.cpp
@@ -153,6 +153,8 @@ void Events::listener_mapWindow(void* owner, void* data) {
             PWINDOW->m_sAdditionalConfigData.forceNoBlur = true;
         } else if (r.szRule == "fullscreen") {
             requestsFullscreen = true;
+        } else if (r.szRule == "opaque") {
+            PWINDOW->m_sAdditionalConfigData.forceOpaque = true;
         } else if (r.szRule.find("rounding") == 0) {
             try {
                 PWINDOW->m_sAdditionalConfigData.rounding = std::stoi(r.szRule.substr(r.szRule.find_first_of(' ') + 1));