diff --git a/cpp/tests/c_api/legacy_spectral_test.c b/cpp/tests/c_api/legacy_spectral_test.c
index 2113190dd32..f73a02cf632 100644
--- a/cpp/tests/c_api/legacy_spectral_test.c
+++ b/cpp/tests/c_api/legacy_spectral_test.c
@@ -19,6 +19,8 @@
 #include <cugraph_c/algorithms.h>
 #include <cugraph_c/graph.h>
 
+#include <gtest/gtest.h>
+
 #include <math.h>
 
 typedef int32_t vertex_t;