diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index 51d2cce92c8..07a8fc4d3a6 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -7983,7 +7983,7 @@ static const SHADER_HANDLER shader_glsl_instruction_handler_table[WINED3DSIH_TAB
     /* WINED3DSIH_IFC                   */ shader_glsl_ifc,
     /* WINED3DSIH_IGE                   */ shader_glsl_relop,
     /* WINED3DSIH_ILT                   */ NULL,
-    /* WINED3DSIH_IMAD                  */ NULL,
+    /* WINED3DSIH_IMAD                  */ shader_glsl_mad,
     /* WINED3DSIH_IMAX                  */ shader_glsl_map2gl,
     /* WINED3DSIH_IMIN                  */ shader_glsl_map2gl,
     /* WINED3DSIH_IMUL                  */ shader_glsl_imul,
diff --git a/dlls/wined3d/shader_sm4.c b/dlls/wined3d/shader_sm4.c
index 6972ea41c71..fb104fcb106 100644
--- a/dlls/wined3d/shader_sm4.c
+++ b/dlls/wined3d/shader_sm4.c
@@ -282,7 +282,7 @@ static const struct wined3d_sm4_opcode_info opcode_table[] =
     {WINED3D_SM4_OP_IEQ,                    WINED3DSIH_IEQ,                 "U",    "II"},
     {WINED3D_SM4_OP_IGE,                    WINED3DSIH_IGE,                 "U",    "II"},
     {WINED3D_SM4_OP_ILT,                    WINED3DSIH_ILT,                 "U",    "II"},
-    {WINED3D_SM4_OP_IMAD,                   WINED3DSIH_IMAD,                "I",    "II"},
+    {WINED3D_SM4_OP_IMAD,                   WINED3DSIH_IMAD,                "I",    "III"},
     {WINED3D_SM4_OP_IMAX,                   WINED3DSIH_IMAX,                "I",    "II"},
     {WINED3D_SM4_OP_IMIN,                   WINED3DSIH_IMIN,                "I",    "II"},
     {WINED3D_SM4_OP_IMUL,                   WINED3DSIH_IMUL,                "II",   "II"},