diff --git a/.cproject b/.cproject
index 1dcc51dfe..d42d2b0e0 100644
--- a/.cproject
+++ b/.cproject
@@ -2777,6 +2777,14 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="testCustomChartExpression.run" path="build/gtsam_unstable/nonlinear/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j4</buildArguments>
+				<buildTarget>testCustomChartExpression.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="testGaussianFactor.run" path="build/linear/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>