diff --git a/pkgs/build-support/setup-hooks/separate-debug-info.sh b/pkgs/build-support/setup-hooks/separate-debug-info.sh
index 1a23e6b198ee..593a5f64862d 100644
--- a/pkgs/build-support/setup-hooks/separate-debug-info.sh
+++ b/pkgs/build-support/setup-hooks/separate-debug-info.sh
@@ -1,6 +1,7 @@
 export NIX_SET_BUILD_ID=1
 export NIX_LDFLAGS+=" --compress-debug-sections=zlib"
 export NIX_CFLAGS_COMPILE+=" -ggdb -Wa,--compress-debug-sections"
+export RUSTFLAGS+=" -g"
 dontStrip=1
 
 fixupOutputHooks+=(_separateDebugInfo)