diff --git a/src/nouveau/compiler/nak/ir.rs b/src/nouveau/compiler/nak/ir.rs
index 2ad1ecb7d1d..7895eb8e8d2 100644
--- a/src/nouveau/compiler/nak/ir.rs
+++ b/src/nouveau/compiler/nak/ir.rs
@@ -1309,6 +1309,7 @@ impl Src {
 
     pub fn is_fneg_zero(&self, src_type: SrcType) -> bool {
         match self.fold_imm(src_type).src_ref {
+            SrcRef::Zero => self.src_mod == SrcMod::FNeg,
             SrcRef::Imm32(0x00008000) => src_type == SrcType::F16,
             SrcRef::Imm32(0x80000000) => src_type == SrcType::F32,
             SrcRef::Imm32(0x80008000) => src_type == SrcType::F16v2,