diff --git a/recipes/lofreq/build.sh b/recipes/lofreq/build.sh
index d135db3010af4..c837495ee15dd 100644
--- a/recipes/lofreq/build.sh
+++ b/recipes/lofreq/build.sh
@@ -1,6 +1,7 @@
 #!/bin/bash
 set -eu -o pipefail
 
+export M4="${BUILD_PREFIX}/bin/m4"
 export INCLUDE_PATH="${PREFIX}/include"
 export LIBRARY_PATH="${PREFIX}/lib"
 export LDFLAGS="${LDFLAGS} -L${PREFIX}/lib"