diff --git a/dev-util/rgbds/rgbds-0.6.1.ebuild b/dev-util/rgbds/rgbds-0.6.1.ebuild
index 87cf24b0e1a22..91276f0bb814b 100644
--- a/dev-util/rgbds/rgbds-0.6.1.ebuild
+++ b/dev-util/rgbds/rgbds-0.6.1.ebuild
@@ -20,7 +20,10 @@ SLOT="0"
 
 DEPEND="media-libs/libpng"
 RDEPEND="${DEPEND}"
-BDEPEND="virtual/pkgconfig"
+BDEPEND="
+	sys-devel/bison
+	virtual/pkgconfig
+"
 
 src_compile() {
 	append-flags -DNDEBUG
diff --git a/dev-util/rgbds/rgbds-0.7.0.ebuild b/dev-util/rgbds/rgbds-0.7.0.ebuild
index dad5871d9c6d1..96b85fe6003d9 100644
--- a/dev-util/rgbds/rgbds-0.7.0.ebuild
+++ b/dev-util/rgbds/rgbds-0.7.0.ebuild
@@ -20,8 +20,10 @@ SLOT="0"
 
 DEPEND="media-libs/libpng"
 RDEPEND="${DEPEND}"
-BDEPEND="app-alternatives/yacc[bison]
-	virtual/pkgconfig"
+BDEPEND="
+	sys-devel/bison
+	virtual/pkgconfig
+"
 
 src_compile() {
 	append-flags -DNDEBUG
diff --git a/dev-util/rgbds/rgbds-9999.ebuild b/dev-util/rgbds/rgbds-9999.ebuild
index 1c56a141d6b97..0a79e0043a34b 100644
--- a/dev-util/rgbds/rgbds-9999.ebuild
+++ b/dev-util/rgbds/rgbds-9999.ebuild
@@ -20,8 +20,10 @@ SLOT="0"
 
 DEPEND="media-libs/libpng"
 RDEPEND="${DEPEND}"
-BDEPEND="app-alternatives/yacc[bison]
-	virtual/pkgconfig"
+BDEPEND="
+	sys-devel/bison
+	virtual/pkgconfig
+"
 
 src_compile() {
 	append-flags -DNDEBUG