diff --git a/src/gallium/drivers/r300/compiler/radeon_inline_literals.c b/src/gallium/drivers/r300/compiler/radeon_inline_literals.c
index 568a3d60e14..54f6d677026 100644
--- a/src/gallium/drivers/r300/compiler/radeon_inline_literals.c
+++ b/src/gallium/drivers/r300/compiler/radeon_inline_literals.c
@@ -71,7 +71,7 @@ void rc_inline_literals(struct radeon_compiler *c, void *user)
 		unsigned src_idx;
 		struct rc_constant * constant;
 		float float_value;
-		unsigned char r300_float;
+		unsigned char r300_float = 0;
 		int ret;
 
 		/* XXX: Handle presub */