diff --git a/src/amd/common/nir/ac_nir_lower_sin_cos.c b/src/amd/common/nir/ac_nir_lower_sin_cos.c
index 4eac1816539..00969fbaf6e 100644
--- a/src/amd/common/nir/ac_nir_lower_sin_cos.c
+++ b/src/amd/common/nir/ac_nir_lower_sin_cos.c
@@ -16,6 +16,7 @@ lower_sin_cos(struct nir_builder *b, nir_alu_instr *sincos, UNUSED void *_)
       return false;
 
    b->cursor = nir_before_instr(&sincos->instr);
+   b->fp_math_ctrl = sincos->fp_math_ctrl;
 
    nir_def *src = nir_fmul_imm(b, nir_ssa_for_alu_src(b, sincos, 0), 0.15915493667125702);
    nir_def *replace = sincos->op == nir_op_fsin ? nir_fsin_amd(b, src) : nir_fcos_amd(b, src);