diff --git a/tests/complex_test.cpp b/tests/complex_test.cpp
index a8f6777..f18fac5 100644
--- a/tests/complex_test.cpp
+++ b/tests/complex_test.cpp
@@ -288,7 +288,7 @@
 }
 
 TEST(complex, csqrtf) {
-  ASSERT_EQ(0.0f, csqrt(0));
+  ASSERT_EQ(0.0f, csqrtf(0));
 }
 
 TEST(complex, csqrtl) {