diff --git a/dlls/wined3d/arb_program_shader.c b/dlls/wined3d/arb_program_shader.c
index 6e9cf4622f..62caa2a755 100644
--- a/dlls/wined3d/arb_program_shader.c
+++ b/dlls/wined3d/arb_program_shader.c
@@ -5257,6 +5257,7 @@ static const SHADER_HANDLER shader_arb_instruction_handler_table[WINED3DSIH_TABL
     /* WINED3DSIH_IF                    */ NULL /* Hardcoded into the shader */,
     /* WINED3DSIH_IFC                   */ shader_hw_ifc,
     /* WINED3DSIH_IGE                   */ NULL,
+    /* WINED3DSIH_IMAX                  */ NULL,
     /* WINED3DSIH_IMUL                  */ NULL,
     /* WINED3DSIH_ISHL                  */ NULL,
     /* WINED3DSIH_ITOF                  */ NULL,
diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index cedf2f1372..9d2cc160b0 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -7857,6 +7857,7 @@ static const SHADER_HANDLER shader_glsl_instruction_handler_table[WINED3DSIH_TAB
     /* WINED3DSIH_IF                    */ shader_glsl_if,
     /* WINED3DSIH_IFC                   */ shader_glsl_ifc,
     /* WINED3DSIH_IGE                   */ shader_glsl_relop,
+    /* WINED3DSIH_IMAX                  */ NULL,
     /* WINED3DSIH_IMUL                  */ shader_glsl_imul,
     /* WINED3DSIH_ISHL                  */ shader_glsl_binop,
     /* WINED3DSIH_ITOF                  */ shader_glsl_to_float,
diff --git a/dlls/wined3d/shader.c b/dlls/wined3d/shader.c
index 7e85988426..417d20e9eb 100644
--- a/dlls/wined3d/shader.c
+++ b/dlls/wined3d/shader.c
@@ -85,6 +85,7 @@ static const char * const shader_opcode_names[] =
     /* WINED3DSIH_IF                    */ "if",
     /* WINED3DSIH_IFC                   */ "ifc",
     /* WINED3DSIH_IGE                   */ "ige",
+    /* WINED3DSIH_IMAX                  */ "imax",
     /* WINED3DSIH_IMUL                  */ "imul",
     /* WINED3DSIH_ISHL                  */ "ishl",
     /* WINED3DSIH_ITOF                  */ "itof",
diff --git a/dlls/wined3d/shader_sm4.c b/dlls/wined3d/shader_sm4.c
index e4d6336f59..b813f2e08c 100644
--- a/dlls/wined3d/shader_sm4.c
+++ b/dlls/wined3d/shader_sm4.c
@@ -98,6 +98,7 @@ enum wined3d_sm4_opcode
     WINED3D_SM4_OP_IF                   = 0x1f,
     WINED3D_SM4_OP_IEQ                  = 0x20,
     WINED3D_SM4_OP_IGE                  = 0x21,
+    WINED3D_SM4_OP_IMAX                 = 0x24,
     WINED3D_SM4_OP_IMUL                 = 0x26,
     WINED3D_SM4_OP_ISHL                 = 0x29,
     WINED3D_SM4_OP_ITOF                 = 0x2b,
@@ -267,6 +268,7 @@ static const struct wined3d_sm4_opcode_info opcode_table[] =
     {WINED3D_SM4_OP_IF,                     WINED3DSIH_IF,                  "",     "U"},
     {WINED3D_SM4_OP_IEQ,                    WINED3DSIH_IEQ,                 "U",    "II"},
     {WINED3D_SM4_OP_IGE,                    WINED3DSIH_IGE,                 "U",    "II"},
+    {WINED3D_SM4_OP_IMAX,                   WINED3DSIH_IMAX,                "I",    "II"},
     {WINED3D_SM4_OP_IMUL,                   WINED3DSIH_IMUL,                "II",   "II"},
     {WINED3D_SM4_OP_ISHL,                   WINED3DSIH_ISHL,                "I",    "II"},
     {WINED3D_SM4_OP_ITOF,                   WINED3DSIH_ITOF,                "F",    "I"},
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 70857c9dcc..fb16aac5e1 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -500,6 +500,7 @@ enum WINED3D_SHADER_INSTRUCTION_HANDLER
     WINED3DSIH_IF,
     WINED3DSIH_IFC,
     WINED3DSIH_IGE,
+    WINED3DSIH_IMAX,
     WINED3DSIH_IMUL,
     WINED3DSIH_ISHL,
     WINED3DSIH_ITOF,