diff --git a/renderdoc/core/replay_proxy.cpp b/renderdoc/core/replay_proxy.cpp
index 8e87b2618..fcbbc3990 100644
--- a/renderdoc/core/replay_proxy.cpp
+++ b/renderdoc/core/replay_proxy.cpp
@@ -2024,7 +2024,8 @@ void ReplayProxy::RemapProxyTextureIfNeeded(ResourceFormat &format, GetTextureDa
       case SpecialFormat::R5G6B5:
       case SpecialFormat::ETC2: params.remap = eRemap_RGBA8; break;
       default:
-        RDCERR("Don't know how to remap special format %u, falling back to RGBA32");
+        RDCERR("Don't know how to remap special format %u, falling back to RGBA32",
+               format.specialFormat);
         params.remap = eRemap_RGBA32;
         break;
     }
diff --git a/renderdoc/driver/gl/gl_common.cpp b/renderdoc/driver/gl/gl_common.cpp
index d0ba68242..75cc2fab3 100644
--- a/renderdoc/driver/gl/gl_common.cpp
+++ b/renderdoc/driver/gl/gl_common.cpp
@@ -1215,6 +1215,7 @@ ResourceFormat MakeResourceFormat(const GLHookSet &gl, GLenum target, GLenum fmt
       case eGL_COMPRESSED_RG11_EAC:
       case eGL_COMPRESSED_SIGNED_RG11_EAC: ret.compCount = 2; break;
 
+      case eGL_ETC1_RGB8_OES:
       case eGL_COMPRESSED_RGB8_ETC2:
       case eGL_COMPRESSED_SRGB8_ETC2: ret.compCount = 3; break;
       case eGL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
@@ -1287,6 +1288,8 @@ ResourceFormat MakeResourceFormat(const GLHookSet &gl, GLenum target, GLenum fmt
       case eGL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB:
         ret.specialFormat = SpecialFormat::BC7;
         break;
+      // ETC1
+      case eGL_ETC1_RGB8_OES:    // handle it as ETC2
       // ETC2
       case eGL_COMPRESSED_RGB8_ETC2:
       case eGL_COMPRESSED_SRGB8_ETC2:
diff --git a/renderdoc/driver/gl/gl_resources.cpp b/renderdoc/driver/gl/gl_resources.cpp
index 53569ac96..ae02fbde4 100644
--- a/renderdoc/driver/gl/gl_resources.cpp
+++ b/renderdoc/driver/gl/gl_resources.cpp
@@ -72,6 +72,8 @@ size_t GetCompressedByteSize(GLsizei w, GLsizei h, GLsizei d, GLenum internalfor
     case eGL_COMPRESSED_RGBA_BPTC_UNORM_ARB:
     case eGL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB:
       return (AlignUp4(w) * AlignUp4(h) * d);
+    // ETC1
+    case eGL_ETC1_RGB8_OES:
     // ETC2
     case eGL_COMPRESSED_RGB8_ETC2:
     case eGL_COMPRESSED_SRGB8_ETC2:
@@ -807,6 +809,8 @@ bool IsCompressedFormat(GLenum internalFormat)
     // BC7
     case eGL_COMPRESSED_RGBA_BPTC_UNORM_ARB:
     case eGL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB:
+    // ETC1
+    case eGL_ETC1_RGB8_OES:
     // ETC2
     case eGL_COMPRESSED_RGB8_ETC2:
     case eGL_COMPRESSED_SRGB8_ETC2: