diff --git a/src/plugins/qbsprojectmanager/qbsproject.cpp b/src/plugins/qbsprojectmanager/qbsproject.cpp
index 14f0c112ae3b58b236a96c2c2ee569690f959e7f..ff95a5d2fbe06915036a0c0805659a8835a571ff 100644
--- a/src/plugins/qbsprojectmanager/qbsproject.cpp
+++ b/src/plugins/qbsprojectmanager/qbsproject.cpp
@@ -77,8 +77,8 @@ namespace Internal {
 // --------------------------------------------------------------------
 
 static const char CONFIG_CPP_MODULE[] = "cpp";
-static const char CONFIG_CXXFLAGS[] = "cxxflags";
-static const char CONFIG_CFLAGS[] = "cflags";
+static const char CONFIG_CXXFLAGS[] = "cxxFlags";
+static const char CONFIG_CFLAGS[] = "cFlags";
 static const char CONFIG_DEFINES[] = "defines";
 static const char CONFIG_INCLUDEPATHS[] = "includePaths";
 static const char CONFIG_FRAMEWORKPATHS[] = "frameworkPaths";