diff --git a/libobs-d3d11/d3d11-shader.cpp b/libobs-d3d11/d3d11-shader.cpp
index 2f9437d5e..f4e27a75a 100644
--- a/libobs-d3d11/d3d11-shader.cpp
+++ b/libobs-d3d11/d3d11-shader.cpp
@@ -327,7 +327,8 @@ static inline void shader_setval_inline(gs_shader_param *param,
 
 void gs_shader_set_bool(gs_sparam_t *param, bool val)
 {
-	shader_setval_inline(param, &val, sizeof(bool));
+	int b_val = (int)val;
+	shader_setval_inline(param, &b_val, sizeof(int));
 }
 
 void gs_shader_set_float(gs_sparam_t *param, float val)
diff --git a/libobs/graphics/effect.c b/libobs/graphics/effect.c
index 249268930..26623f482 100644
--- a/libobs/graphics/effect.c
+++ b/libobs/graphics/effect.c
@@ -329,7 +329,8 @@ static inline void effect_setval_inline(gs_eparam_t *param,
 
 void gs_effect_set_bool(gs_eparam_t *param, bool val)
 {
-	effect_setval_inline(param, &val, sizeof(bool));
+	int b_val = (int)val;
+	effect_setval_inline(param, &b_val, sizeof(int));
 }
 
 void gs_effect_set_float(gs_eparam_t *param, float val)