diff --git a/Makefile.am b/Makefile.am
index d838007b..34f61ef9 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -225,6 +225,7 @@ vkd3d_shader_tests = \
 	tests/hlsl/single-numeric-initializer.shader_test \
 	tests/hlsl/sm1-const-allocation.shader_test \
 	tests/hlsl/sm1-const-folding.shader_test \
+	tests/hlsl/sm1-interstage-interface.shader_test \
 	tests/hlsl/sm6-ternary.shader_test \
 	tests/hlsl/sm6-uav-rwtexture.shader_test \
 	tests/hlsl/smoothstep.shader_test \
diff --git a/tests/hlsl/sm1-interstage-interface.shader_test b/tests/hlsl/sm1-interstage-interface.shader_test
new file mode 100644
index 00000000..d9052006
--- /dev/null
+++ b/tests/hlsl/sm1-interstage-interface.shader_test
@@ -0,0 +1,61 @@
+[require]
+shader model < 4.0
+
+[input layout]
+0 r32g32-float POSITION
+0 r32g32-float TEXCOORD 0
+0 r32-float COLOR 1
+0 r32-float COLOR 0
+1 r32-float TEXCOORD 2
+1 r32-float TEXCOORD 3
+
+[vb 0]
+-1.0 -1.0   3.0 5.0   0.5   0.7
+-1.0  1.0   3.0 5.0   0.5   0.7
+ 1.0 -1.0   3.0 5.0   0.5   0.7
+ 1.0  1.0   3.0 5.0   0.5   0.7
+
+[vb 1]
+2.0   6.0
+2.0   6.0
+2.0   6.0
+2.0   6.0
+
+[vertex shader]
+
+struct vertex
+{
+    float4 position : POSITION;
+    float2 t0 : TEXCOORD0;
+    float t2 : TEXCOORD2;
+    float t3 : TEXCOORD3;
+    float c0 : COLOR0;
+    float c1 : COLOR1;
+};
+
+void main(in vertex vin, out vertex vout)
+{
+    vout = vin;
+}
+
+[pixel shader]
+
+struct vertex
+{
+    float t3 : TEXCOORD3;
+    float c1 : COLOR1;
+    float2 t0 : TEXCOORD0;
+    float c0 : COLOR0;
+};
+
+void main(struct vertex i, out float4 o : SV_Target)
+{
+    o.x = i.t0.y + i.t3;
+    o.y = i.c1;
+    o.z = i.c0;
+    o.w = i.t0.x;
+}
+
+[test]
+draw triangle strip 4
+probe (0,0) rgba(11.0, 0.5, 0.7, 3.0)
diff --git a/tests/shader_runner_d3d9.c b/tests/shader_runner_d3d9.c
index de1c87df..4ea90488 100644
--- a/tests/shader_runner_d3d9.c
+++ b/tests/shader_runner_d3d9.c
@@ -293,6 +293,8 @@ static D3DDECLTYPE vertex_decl_type_from_format(DXGI_FORMAT format)
 
 static D3DDECLUSAGE vertex_decl_usage_from_name(const char *name)
 {
+    if (!strcasecmp(name, "color"))
+        return D3DDECLUSAGE_COLOR;
     if (!strcasecmp(name, "position") || !strcasecmp(name, "sv_position"))
         return D3DDECLUSAGE_POSITION;
     if (!strcasecmp(name, "psize"))