diff --git a/dlls/wined3d/arb_program_shader.c b/dlls/wined3d/arb_program_shader.c
index 1abc64ccdd1..820ba0199e8 100644
--- a/dlls/wined3d/arb_program_shader.c
+++ b/dlls/wined3d/arb_program_shader.c
@@ -3855,16 +3855,16 @@ static int compare_sig(const struct wined3d_shader_signature *sig1, const struct
 
         if ((ret = strcmp(e1->semantic_name, e2->semantic_name)))
             return ret;
-        if (e1->semantic_idx != e2->semantic_idx)
-            return e1->semantic_idx < e2->semantic_idx ? -1 : 1;
-        if (e1->sysval_semantic != e2->sysval_semantic)
-            return e1->sysval_semantic < e2->sysval_semantic ? -1 : 1;
-        if (e1->component_type != e2->component_type)
-            return e1->component_type < e2->component_type ? -1 : 1;
-        if (e1->register_idx != e2->register_idx)
-            return e1->register_idx < e2->register_idx ? -1 : 1;
-        if (e1->mask != e2->mask)
-            return e1->mask < e2->mask ? -1 : 1;
+        if ((ret = wined3d_uint32_compare(e1->semantic_idx, e2->semantic_idx)))
+            return ret;
+        if ((ret = wined3d_uint32_compare(e1->sysval_semantic, e2->sysval_semantic)))
+            return ret;
+        if ((ret = wined3d_uint32_compare(e1->component_type, e2->component_type)))
+            return ret;
+        if ((ret = wined3d_uint32_compare(e1->register_idx, e2->register_idx)))
+            return ret;
+        if ((ret = wined3d_uint32_compare(e1->mask, e2->mask)))
+            return ret;
     }
     return 0;
 }