diff --git a/test/colorspace/x86/colorspace_avx2_test.cpp b/test/colorspace/x86/colorspace_avx2_test.cpp
index 16f27bb6..b6175f57 100644
--- a/test/colorspace/x86/colorspace_avx2_test.cpp
+++ b/test/colorspace/x86/colorspace_avx2_test.cpp
@@ -23,7 +23,6 @@ void test_case(const zimg::colorspace::ColorspaceDefinition &csp_in, const zimg:
 		return;
 	}
 
-	zimg::PixelFormat format = zimg::PixelType::FLOAT;
 	auto builder = zimg::colorspace::ColorspaceConversion{ w, h }
 		.set_csp_in(csp_in)
 		.set_csp_out(csp_out)
diff --git a/test/colorspace/x86/colorspace_avx512_test.cpp b/test/colorspace/x86/colorspace_avx512_test.cpp
index ffe639f4..696e6926 100644
--- a/test/colorspace/x86/colorspace_avx512_test.cpp
+++ b/test/colorspace/x86/colorspace_avx512_test.cpp
@@ -23,7 +23,6 @@ void test_case(const zimg::colorspace::ColorspaceDefinition &csp_in, const zimg:
 		return;
 	}
 
-	zimg::PixelFormat format = zimg::PixelType::FLOAT;
 	auto builder = zimg::colorspace::ColorspaceConversion{ w, h }
 		.set_csp_in(csp_in)
 		.set_csp_out(csp_out)
diff --git a/test/colorspace/x86/colorspace_avx_test.cpp b/test/colorspace/x86/colorspace_avx_test.cpp
index 46950abd..5f5051b8 100644
--- a/test/colorspace/x86/colorspace_avx_test.cpp
+++ b/test/colorspace/x86/colorspace_avx_test.cpp
@@ -23,7 +23,6 @@ void test_case(const zimg::colorspace::ColorspaceDefinition &csp_in, const zimg:
 		return;
 	}
 
-	zimg::PixelFormat format = zimg::PixelType::FLOAT;
 	auto builder = zimg::colorspace::ColorspaceConversion{ w, h }
 		.set_csp_in(csp_in)
 		.set_csp_out(csp_out);
diff --git a/test/colorspace/x86/colorspace_sse2_test.cpp b/test/colorspace/x86/colorspace_sse2_test.cpp
index 1c0e4edd..3299961d 100644
--- a/test/colorspace/x86/colorspace_sse2_test.cpp
+++ b/test/colorspace/x86/colorspace_sse2_test.cpp
@@ -23,7 +23,6 @@ void test_case(const zimg::colorspace::ColorspaceDefinition &csp_in, const zimg:
 		return;
 	}
 
-	zimg::PixelFormat format = zimg::PixelType::FLOAT;
 	auto builder = zimg::colorspace::ColorspaceConversion{ w, h }
 		.set_csp_in(csp_in)
 		.set_csp_out(csp_out)
diff --git a/test/colorspace/x86/colorspace_sse_test.cpp b/test/colorspace/x86/colorspace_sse_test.cpp
index 88672006..a50abfec 100644
--- a/test/colorspace/x86/colorspace_sse_test.cpp
+++ b/test/colorspace/x86/colorspace_sse_test.cpp
@@ -23,7 +23,6 @@ void test_case(const zimg::colorspace::ColorspaceDefinition &csp_in, const zimg:
 		return;
 	}
 
-	zimg::PixelFormat format = zimg::PixelType::FLOAT;
 	auto builder = zimg::colorspace::ColorspaceConversion{ w, h }
 		.set_csp_in(csp_in)
 		.set_csp_out(csp_out);