diff --git a/drmcrtc.cpp b/drmcrtc.cpp
index a7b17c4..91d5fd6 100644
--- a/drmcrtc.cpp
+++ b/drmcrtc.cpp
@@ -32,7 +32,7 @@
       width_(c->width),
       height_(c->height),
       mode_(&c->mode),
-      modeValid_(c->mode_valid) {
+      mode_valid_(c->mode_valid) {
 }
 
 DrmCrtc::~DrmCrtc() {
diff --git a/drmcrtc.h b/drmcrtc.h
index cf4ec65..db9eb76 100644
--- a/drmcrtc.h
+++ b/drmcrtc.h
@@ -55,7 +55,7 @@
   uint32_t height_;
 
   DrmMode mode_;
-  bool modeValid_;
+  bool mode_valid_;
 };
 }