diff --git a/dev-util/xcd-rgb/xcd-rgb-1.0.0.ebuild b/dev-util/xcd-rgb/xcd-rgb-1.0.0.ebuild
index d35054a3dd..ea50d240f8 100644
--- a/dev-util/xcd-rgb/xcd-rgb-1.0.0.ebuild
+++ b/dev-util/xcd-rgb/xcd-rgb-1.0.0.ebuild
@@ -51,6 +51,7 @@ fi
 
 src_configure() {
 	tc-export CC
+	export LDFLAGS="${LDFLAGS} -lm"
 	use static && export LDSTATIC=-static
 }
 
diff --git a/dev-util/xcd-rgb/xcd-rgb-9999.ebuild b/dev-util/xcd-rgb/xcd-rgb-9999.ebuild
index d35054a3dd..ea50d240f8 100644
--- a/dev-util/xcd-rgb/xcd-rgb-9999.ebuild
+++ b/dev-util/xcd-rgb/xcd-rgb-9999.ebuild
@@ -51,6 +51,7 @@ fi
 
 src_configure() {
 	tc-export CC
+	export LDFLAGS="${LDFLAGS} -lm"
 	use static && export LDSTATIC=-static
 }